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Movies like X: The Unknown

Key Features:
Radiation, Scientific investigation, Irish setting, Creature feature, Cold War paranoia, Small town terror, Monster movie, Survival, Science fiction horror
Tone:
serious, suspense-driven
Target Audience:
Science fiction fans, Horror enthusiasts, Fans of classic monster movies, Viewers interested in Cold War era themes
Emotional Arc:
Intrigue → Fear → Panic

X: The Unknown

1956-09-21
X: The Unknown Poster - Find Similar Movies

Army radiation experiments awaken a subterranean monster from a fissure that feeds on energy and proceeds to terrorise a remote Scottish village. An American research scientist at a nearby nuclear plant joins with a British investigator to discover why the victims were radioactively burned and why, shortly thereafter, a series of radiation-related incidents are occurring in an ever-growing straight line away from the fissure.

Genres
Horror, Science Fiction, Mystery
Cast
Dean Jagger, Leo McKern, William Lucas, Edward Chapman, John Harvey, Michael Ripper, Anthony Newley, Ian MacNaughton, Peter Hammond, Kenneth Cope
Crew
Leslie Norman, Jimmy Sangster, Jimmy Sangster
Rating
6.1(71 votes)
X: The UnknownX: The Unknown
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The Man from Planet X

While watching for a planet that may collide with earth, scientists stationed in Scotland are approached by a visitor from outer space.



Fiend Without a Face
6.042

An American airbase in Canada provokes resentment from the nearby residents after fallout from nuclear experiments at the base are blamed for a recent spate of disappearances. A captain from the airbase is assigned to investigate, and begins to suspect that an elderly British scientist who lives near the base and conducts research in the field of mind over matter knows more than he is letting on..



Creature
Creature(1985)
4.6

A crew of scientists arrives on a far, cold planet to examine archaic artifacts of unknown origin. They discover that their German enemies already have a ship there. When they seek their help after a failed landing, they only find the Germans’ bodies, obviously slaughtered by one of the archaic creatures, awoken to new life. Now the alien is after them.



X: The Man with the X-Ray Eyes

A doctor uses special eye drops to give himself x-ray vision, but the new power has disastrous consequences.



The Arrival
6

Zane Ziminski is an astrophysicist who receives a message that seems to have extraterrestrial origins. Eerily soon after his discovery, Zane is fired. He then embarks on a search to determine the origins of the transmission that leads him into a Hitchcockian labyrinth of paranoia and intrigue.



Mind Ripper
4.3

A top secret experiment intended to produce a superhuman has gone terribly wrong. Now the creators, trapped in a remote desert outpost, are being pursued ruthlessly by their creation.



The X from Outer Space

The spaceship AAB-Gamma is dispatched from FAFC headquarters in Japan to make a landing on the planet Mars and investigate reports of UFOs in the area. As they near the red planet, they encounter a mysterious UFO that coats the ship's hull with unusual spores. Taking one of the specimens back to earth, it soon develops and grows into a giant chicken-lizard-alien monster that tramples Japan.



Caltiki, the Immortal Monster

Academic researchers are chased by a nuclear-hot specimen of ancient Mayan blob.



The Thing from Another World

Scientists and US Air Force officials fend off a blood-thirsty alien organism while investigating at a remote arctic outpost.



Supernova
Supernova(2000)
4.946

Set in the 22nd century, when a battered salvage ship sends out a distress signal, the seasoned crew of the rescue hospital ship Nova-17 responds. What they find is a black hole--that threatens to destroy both ships--and a mysterious survivor whose body quickly mutates into a monstrous and deadly form.



Xtro
Xtro(1982)
5.8

Tony's father Sam, abducted by aliens three years earlier, returns to earth and seeks out his wife and son, but Rachel has since been living with Joe and the reunion is awkward. Joe doesn't trust Sam, and Rachel can't quite decide what her feelings are for her two men. Sam is not the same as when he left, and he begins affecting Tony in frightening ways.



Alien Hunter
5.1

Government agents find evidence of extraterrestrial life at the South Pole.



Die, Monster, Die!
5.6

A young man visits his fiancé's estate to discover that her wheelchair-bound scientist father has discovered a meteorite that emits mutating radiation rays that have turned the plants in his greenhouse to giants. When his own wife falls victim to this mysterious power, the old man takes it upon himself to destroy the glowing object with disastrous results.



The Unfamiliar
5.563

A British Army doctor comes back from a war, thinking that she has PTSD only to discover that there is a more daunting malevolence at work making the life that she knew unfamiliar.



Forbidden World
5.224

In the distant future, a federation marshal arrives at a research lab on a remote planet where a genetic experiment has gotten loose and begins feeding on the dwindling scientific group.



Invasion of Astro-Monster

Astronauts Glenn and Fuji investigate Planet X and encounter mysterious aliens known as the Xiliens, who ask Earth's people to help save their world from "Monster Zero". In exchange for borrowing Godzilla and Rodan, the Xiliens offer a cure for cancer. As Glenn investigates, he develops a romance with Miss Namikawa and uncovers the Xilien's true intentions.



Forbidden Planet
7.256

Starship C57D travels to planet Altair 4 in search of the crew of spaceship "Bellerophon," a scientific expedition that has been missing for twenty years. They find themselves unwelcome by the expedition's lone survivor and warned of destruction by an invisible force if they don't turn back immediately.



The Damned
6.232

An American tourist and a troubled young woman are chased by her gang leader brother to a top secret British government facility that conducts experiments on children.



The Thing
The Thing(2011)
6.2

When paleontologist Kate Lloyd travels to an isolated outpost in Antarctica for the expedition of a lifetime, she joins an international team that unearths a remarkable discovery. Their elation quickly turns to fear as they realize that their experiment has freed a mysterious being from its frozen prison. Paranoia spreads like an epidemic as a creature that can mimic anything it touches will pit human against human as it tries to survive and flourish in this spine-tingling thriller.



Xtro 2: The Second Encounter

An underground government facility is locked down by its A.I.-controlled computer when an alien entity travels through a dimensional portal and threatens the lives of everybody inside.



This Island Earth

Aliens have landed and are hiding on Earth, but need Earth’s scientists to help them fight an inter-planetary war.



Isolation
Isolation(2005)
5.5

On a remote Irish farm, five people become unwilling participants in an experiment that goes nightmarishly wrong.



Contamination
5.2

A former astronaut helps a government agent and a police detective track the source of mysterious alien pod spores, filled with lethal flesh-dissolving acid, to a South American coffee plantation controlled by alien pod clones.



The Empty Man
6.173

On the trail of a missing girl, an ex-cop comes across a secretive group attempting to summon a terrifying supernatural entity.



Outpost
Outpost(2008)
5.9

In a seedy bar in a town ravaged by war, scientist and businessman Hunt hires mercenary and former Royal Marine D.C. to assemble a crack team of ex-soldiers to protect him on a dangerous journey into no-man's land. Their mission is to scope out an old military bunker in Eastern Europe. It should be easy – 48 hours at the most. Lots of cash for little risk. Or so he says...



First Man into Space

The first pilot to leave Earth's atmosphere lands, then vanishes; but something with a craving for blood prowls the countryside...



Loch Ness
Loch Ness(1996)
5.657

Dr. Dempsey, an American scientist, is sent to Scotland to disprove the existence of the Loch Ness Monster. He is shocked when Laura, an inn-keeper, introduces him to a small family of Nessie-dinosaurs.



Bleeders
Bleeders(1997)
4.458

A man with an unknown disease travels to an island with his girlfriend where his relatives once lived, hoping to find a cure to his illness. Although his relatives were all thought to be dead, he finds them living underground.



Them!
Them!(1954)
6.8

As a result of nuclear testing, gigantic, ferocious mutant ants appear in the American desert southwest, and a father-daughter team of entomologists join forces with the state police officer who first discovers their existence, an FBI agent and, eventually, the US Army to eradicate the menace, before it spreads across the continent — and the world.



Altered
Altered(2006)
5.426

Fifteen years ago, five men were abducted by aliens. Only four returned. Now, these same four men have managed to capture one of the creatures who killed their friend and ruined their lives.



The Rift
The Rift(1990)
4.663

An experimental submarine with a very experienced crew, the "Siren II" is sent to find out what happened to the "Siren I" after it mysteriously disappeared in a submarine rift. Things go awry when they begin to find things that shouldn't be there...



Monster Hunters
6.3

When an alien prison ship crash lands and unleashes creature after creature in the California desert, they make quick work of the army that tries to stop them. Now, the only hope of stopping the aliens rests with a secret branch of the government specializing in alien weaponry. But with the team untested in actual combat, the battle for Earth will be brutal.



Tarantula
Tarantula(1955)
6.478

A rogue scientist near a small desert town arouses the suspicion of the town's doctor when his lab assistant is found dead from a case of acromegaly, which took only four days to develop. As the doctor investigates, aided by the scientist's new female assistant, they discover that something is devouring local cattle and humans in increasingly large quantities.



It! The Terror from Beyond Space

The first manned expedition to Mars is invaded by an unknown life form, which stows away on the rescue ship.



The X-Files
6.897

Mulder and Scully, now taken off the FBI's X Files cases, must find a way to fight the shadowy elements of the government to find out the truth about a conspiracy that might mean the alien colonization of Earth.



Growth
Growth(2010)
5.3

In 1989, a breakthrough in "advanced parasitic research" on Cuttyhunk Island gave scientists a jump in human evolution. Initial tests proved promising, as subjects experienced heightened physical and mental strength and awareness. But - something in the experiment went horribly wrong, and the island mysteriously lost three quarters of its population.



The Quatermass Xperiment

The first manned spacecraft, fired from an English launchpad, is first lost from radar, then roars back to Earth and crashes in a farmer's field, and is found to contain only one of the three men who took off in it; and he is unable to talk but appears to be undergoing a torturous physical and mental metamorphosis.



The Thing
The Thing(1982)
8.071

A research team in Antarctica is hunted by a shape-shifting alien that assumes the appearance of its victims.



The Black Hole
4.5

It's 2 A.M. in St. Louis when a routine scientific experiment goes terribly wrong and an explosion shakes the city. A scientific team investigates, clashing with an intergalactic, voltage-devouring creature that vaporizes them.



Killers from Space
3.741

Atomic scientist/pilot Doug Martin is missing after his plane crashes on an reconnaissance mission after a nuclear test. Miraculously appearing unhurt at the base later, he is given sodium amethol, but authorities are skeptical of his story that he was captured by aliens determined to conquer the Earth with giant monsters and insects. Martin vows to use existing technology to destroy them.



The Abyss
The Abyss(1989)
7.346

A civilian oil rig crew is recruited to conduct a search and rescue effort when a nuclear submarine mysteriously sinks. One diver soon finds himself on a spectacular odyssey 25,000 feet below the ocean's surface where he confronts a mysterious force that has the power to change the world or destroy it.



Hulk
Hulk(2003)
5.575

Bruce Banner, a genetics researcher with a tragic past, suffers massive radiation exposure in his laboratory that causes him to transform into a raging green monster when he gets angry.



DeepStar Six
5.488

The crew of an experimental underwater nuclear base are forced to struggle for their lives when their explorations disturb a creature who threatens to destroy their base.



Frankenstein
5.394

After he is artificially created, then left for dead by a husband-and-wife team of eccentric scientists, Adam is confronted with nothing but aggression and violence from the world around him. This perfect creation-turned disfigured monster must come to grips with the horrific nature of humanity.



Darkman
Darkman(1990)
6.4

Dr. Peyton Westlake is on the verge of realizing a major breakthrough in synthetic skin when his laboratory is destroyed by gangsters. Having been burned beyond recognition and forever altered by an experimental medical procedure, Westlake becomes known as Darkman, assuming alternate identities in his quest for revenge and a new life with a former love.



Project X
Project X(1987)
6.3

A young inductee into the military is given the task of looking after some chimpanzees used in the mysterious 'Project X'. Getting to know the chimps fairly well, he begins to suspect there is more to the secret project than he is being told.



The Vanishing
5.74

Three lighthouse keepers on an uninhabited island off the coast of Scotland discover something that isn't theirs to keep.



The Incredible Hulk
6.42

An accidental overdose of gamma radiation causes a mutation in scientist David Banner's DNA: now whenever he becomes angry, he metamorphoses into a seven-foot-tall, 330-pound, mindless muscular green creature.



Ad Astra
Ad Astra(2019)
6.1

The near future, a time when both hope and hardships drive humanity to look to the stars and beyond. While a mysterious phenomenon menaces to destroy life on planet Earth, astronaut Roy McBride undertakes a mission across the immensity of space and its many perils to uncover the truth about a lost expedition that decades before boldly faced emptiness and silence in search of the unknown.



The Loch Ness Horror
5.569

A vanished submarine prompts a rescue operation that leads to the Loch Ness monster. Having escaped the Loch, the creature unleashes decades of pent-up aggression on those it encounters.



Invasion of the Body Snatchers

A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.



Victor Frankenstein
5.949

Eccentric scientist Victor Von Frankenstein creates a grotesque creature in an unorthodox scientific experiment.



Alien: Covenant
6.2

The crew of the colony ship Covenant, bound for a remote planet on the far side of the galaxy, discovers what they think is an uncharted paradise but is actually a dark, dangerous world.



Hollow Man
6

Cocky researcher Sebastian Caine is working on a project to make living creatures invisible. Determined to achieve the ultimate breakthrough, Caine pushes his team to move to the next phase — using himself as the subject. The test is a success, but when the process can't be reversed and Caine seems doomed to future without flesh, he starts to turn increasingly dangerous.



Approaching the Unknown

Captain William Stanaforth is on a one-way solo mission to take the first steps in colonising Mars. Like all pioneers throughout history, Stanaforth will face insurmountable odds and life and death decisions as he rockets bravely through space.



The War of the Worlds

The residents of a small town are excited when a flaming meteor lands in the hills, until they discover it is the first of many transport devices from Mars bringing an army of invaders invincible to any man-made weapon, even the atomic bomb.



The Chain Reaction
5.481

Contaminated by a nuclear-plant spill, an Australian worker hides with a woman and tries to warn the public.



The Isle
The Isle(2019)
4.734

1840 and another ship crashes on the rocks of an almost deserted island in Scotland. Three sailors survive the wreck and make it to shore where the few locals take them in as they wait for the mainland boat to come for them. But the sailors' survival story has only just started as they uncover the strange past of the once vibrant island.



Moontrap
Moontrap(1989)
4.759

The Space Shuttle returns to earth, but some of the equipment brought back on it begins to behave strangely. Scientists are unsure what is happening, and decide to take all necessary precautions.



It Came from Outer Space

Author and amateur astronomer John Putnam and schoolteacher Ellen Fields witness an enormous meteorite come down near a small town in Arizona. Putnam becomes a local object of scorn when, after examining the object up close, he announces that it is a spacecraft, and that it is inhabited...



The Wicker Man
7.343

Police sergeant Neil Howie is called to an island village in search of a missing girl whom the locals claim never existed. The investigation is further complicated as Howie’s religious views clash with those of the island’s residents.



World Without End
5.8

Four astronauts returning from man's first mission to Mars enter a time warp and crash on a 26th Century Earth devastated by atomic war. At first unaware where they are, but finding the atmosphere safe to breathe, they start exploring and find themselves in a divided future where disfigured mutants living like cavemen inhabit the surface, while the normals live comfortably below the surface but are dying as a race from lack of natural water, air and sunlight.



The Boogens
5.4

Otherworldly creatures inhabit the bootlegging tunnels underneath a small town mining community, and they kill any of the townsfolk who invade their home.



Tentacles
Tentacles(1977)
4.6

Several people disappear from and at the sea. Their bodies are found gnawed to the skeleton, even the marrow is missing. The scientists have no idea which animal could do such things. Dr. Turner begins to suspect that the company which builds a tunnel beneath the bay might have poisoned the environment and caused an octopus to mutate to giant dimensions...



Blood Glacier
5.734

At a climate research station in the Alps, the scientists are stunned as the nearby melting glacier is leaking a red liquid. It quickly turns to be very special juice — with unexpected genetic effects on the local wildlife.



Alien Invasion: S.U.M.1

An aggressive race of aliens took over Planet Earth and humanity's at its end, living in giant bunkers below ground. Young Military rookie S.U.M.1 (Iwan Rheon) is sent to the surface to save a group of unprotected survivors.



Without Warning
5.259

Sandy and Greg are teenagers who go camping, despite warnings not to, with their friends. They soon encounter aliens, who are using the area as a hunting ground.



Life
Life(2017)
6.446

The six-member crew of the International Space Station is tasked with studying a sample from Mars that may be the first proof of extra-terrestrial life, which proves more intelligent than ever expected.



Of Unknown Origin
5.767

A man who recently completed rebuilding a townhouse becomes obsessed with a rat infestation until it becomes an interspecies duel.



Higher Power
5.1

When the Universe decides what it wants, it's pointless to resist. With his family's life at stake, Joseph Steadman finds himself the unwilling test subject of a maniacal scientist in a battle that could save the world – or destroy it.



Alien
Alien(1979)
8.166

During its return to the earth, commercial spaceship Nostromo intercepts a distress signal from a distant planet. When a three-member team of the crew discovers a chamber containing thousands of eggs on the planet, a creature inside one of the eggs attacks an explorer. The entire crew is unaware of the impending nightmare set to descend upon them when the alien parasite planted inside its unfortunate host is birthed.



Spiders
Spiders(2000)
4.899

A DNA experiment on a rare breed of spider is taking place on a NASA space shuttle, when a freak meteor shower engulfs the shuttle, causing everything to go horribly wrong. One survivor is found on the ship and watched over in a secret location deep in the California desert. The problem continues, as the survivor isn't alone, as another deadly spiders climbs out of him and goes on a rampage around the ship. Curious reporter Marci Eyre must now survive, escape and warn everyone before the spider reaches outside the desert.



Monster Island
5.72

In the Pacific, 1944, a Japanese soldier and a British prisoner of war are stranded on a deserted island, hunted by a deadly creature. Two mortal enemies must come together to survive the unknown.



Living Hell
5.241

In a top secret Cold War military project an unstoppable, malignant organism who feeds on light and energy is unleashed threatening to destroy everything in its path.



Rocketship X-M
4.8

Astronauts blast off to explore the moon on Rocketship X-M or "Rocketship eXploration Moon". A spacecraft malfunction and some fuel miscalculations cause them to end up landing on Mars. On Mars, evidence of a once powerful civilization is found. The scientists determined that an atomic war destroyed most of the Martians. Those that survived reverted to a caveman like existence.



The Cave
The Cave(2005)
5.4

After a group of biologists discovers a huge network of unexplored caves in Romania and, believing it to be an undisturbed eco-system that has produced a new species, they hire the best American team of underwater cave explorers in the world. While exploring deeper into the underwater caves, a rockslide blocks their exit, and they soon discover a larger carnivorous creature has added them to its food chain.



Spectral
Spectral(2016)
6.523

A special-ops team is dispatched to fight supernatural beings that have taken over a European city.



Underwater
6.284

After an earthquake destroys their underwater station, six researchers must navigate two miles along the dangerous, unknown depths of the ocean floor to make it to safety in a race against time.



Cyborg X
Cyborg X(2016)
5.3

After X-Corp, a radical weapons manufacturer, is taken over by a Cyber Virus, a group of survivors must fight to save humanity from the army of Machines the Virus now controls.



Alien Apocalypse
3.9

An astronaut doctor Ivan Hood and his fellow astronaut Kelly return from their mission in space to find the world has been taken over by aliens. Now Dr. Ivan Hood and Kelly must lead a revolution to free the human slaves from their alien masters.



Night of the Big Heat

While mainland Britain shivers in deepest winter, the northern island of Fara bakes in the nineties, and the boys at the Met station have no more idea what is going on than the regulars at the Swan. Only a stand-offish visting scientist realizes space aliens are to blame.



Risen
Risen(2021)
5.068

Disaster unfolds when a meteor strikes a small town, turning the environment uninhabitable and killing everything in the surrounding area. Exobiologist Lauren Stone is called to find answers to the unearthly event. As she begins to uncover the truth, imminent danger awakens and it becomes a race against time to save mankind.



The Blood Beast Terror

A scientist working with genetics creates a horrifying flying creature that feeds on human blood. Following a gruesome trail of dead bodies, Scotland Yard investigators must scramble to halt its ravenous rampage.



Contact
Contact(1997)
7.439

A radio astronomer receives the first extraterrestrial radio signal ever picked up on Earth. As the world powers scramble to decipher the message and decide upon a course of action, she must make some difficult decisions between her beliefs, the truth, and reality.



Stranded
Stranded(2013)
3.664

The Lunar Base Ark explores ore and unexpectedly is hit by a meteor shower and has severe damages. Colonel Gerard Brauchman sends the crewwoman Ava Cameron to repair a wing that is full of CO2. Dr. Lance Krauss warns that the gas may cause paranoia and hallucinations. Ava brings a sample of the meteor for analysis and Dr. Krauss finds that there are spores attached to the meteor. Ava accidentally cuts her finger in a sample but she hides the cut from the doctor. Soon Ava gets pregnant and delivers an alien offspring. However, neither Col. Brauchman nor Dr. Kraus believes in her words and they believe that Ava is delusional. He offspring bites the crewman Bruce Johns and the crew discovers that Bruce has been cloned by the alien. Soon they find how dangerous the clone is.



X-Men: Apocalypse
6.518

After the re-emergence of the world's first mutant, world-destroyer Apocalypse, the X-Men must unite to defeat his extinction level plan.



Quatermass 2
6.4

In England, a group of space scientists led by Bernard Quatermass, who have developed plans for the first Moon colony, learn that a secret, ostensibly government-run, complex of identical design has been built in a remote part of England and is the focus of periodic falls of small, hollow "meteorites" originating in outer space. Quatermass determines to investigate and uncovers a terrifying extraterrestrial life form which has already begun action to take over the Earth.



Attack of the Crab Monsters

A group of scientists travel to a remote island to study the effects of nuclear weapons tests, only to get stranded when their airplane mysteriously explodes. The team soon discovers that the tests have given rise to crabs mutated into intelligent, impervious, telepathic giants intent on increasing their numbers by breeding, then travelling to populated areas to feed, and which do not intend to be stopped by their discoverers.



The Werewolf
5.5

The arrival in a small mountain town of a dissheveled stranger launches a series of murders committed by some sort of animal. As the town doctor and his daughter attempt to help the stranger, the sheriff investigates the murders; and they uncover a sinister experiment involving two rogue scientists, a car accident victim, his wife and children, and a serum that causes a man to turn into a ravaging werewolf.



Annihilation
6.4

A biologist signs up for a dangerous, secret expedition into a mysterious zone where the laws of nature don't apply.



Dante's Peak
6.2

Volcanologist Harry Dalton comes to the sleepy town of Dante's Peak to investigate the recent rumblings of the dormant volcano the burg is named for. Before long, his worst fears are realized when a massive eruption hits, and immediately, Harry, the mayor and the townspeople find themselves fighting for their lives amid a catastrophic nightmare.



The Terror Within
4.383

Experiments in biological warfare have destroyed all but a few remnants of the human race. Alone in a lab, eight students work feverishly to create a vaccine before they are forced outside in search for food. It is then that the surviving scientists discover creatures mutated by the plague. Now they prepare to do battle against their worst fear: The Terror Within.



Doors
Doors(2021)
4.869

Without warning, millions of mysterious alien “doors” suddenly appear around the globe. In a rush to determine the reason for their arrival, mankind must work together to understand the purpose of these cosmic anomalies.



Quatermass and the Pit

A mysterious artifact unearthed below a London Underground station proves to have powerful psychic effects on the people around.



The Invasion
6

Washington, D.C. psychologist Carol Bennell and her colleague Dr. Ben Driscoll are the only two people on Earth who are aware of an epidemic running rampant through the city. They discover an alien virus aboard a crashed space shuttle that transforms anyone who comes into contact with it into unfeeling drones while they sleep. Carol realizes her son holds the key to stopping the spread of the plague and she races to find him before it is too late.



Virus
Virus(1999)
5.4

When the crew of an American tugboat boards an abandoned Russian research vessel, the alien life form aboard regards them as a virus which must be destroyed.



Savageland
6.8

When a small town near the Arizona-Mexico border is wiped out overnight, suspicion falls on the lone survivor. But a roll of photos the survivor took that night tells a different story.



Nazis at the Center of the Earth

A group of researchers in Antarctica are abducted by a platoon of masked soldiers and dragged into a hidden continent in the center of the Earth. There, they discover that surviving Nazi soldiers are plotting an invasion of Earth to revive the Third Reich.



Prometheus
6.587

A team of explorers discover a clue to the origins of mankind on Earth, leading them on a journey to the darkest corners of the universe. There, they must fight a terrifying battle to save the future of the human race.

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