X: The Unknown
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.
Movies Like X: The Unknown
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The Giant Behemoth
1959★ 5.8
Marine atomic tests cause changes in the ocean's ecosystem resulting in dangerous blobs of radiation and the resurrection of a dormant dinosaur which threatens London.
Quatermass 2
1957★ 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.
Underwater
2020★ 6.3
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.
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.
The Meg
2018★ 6.3
A deep sea submersible pilot revisits his past fears in the Mariana Trench, and accidentally unleashes the seventy foot ancestor of the Great White Shark believed to be extinct.
The Car
1977★ 6.4
The Utah community of Santa Ynez is being terrorized by a mysterious black coupe that appears out of nowhere and begins running people down. After the car kills off the town sheriff, Captain Wade Parent is determined to stop the murderous driver.
Cosmos
2019★ 6.0
Three astronomers accidentally intercept what they believe to be a signal from a distant alien civilization, but the truth is even more incredible than any of them could have imagined.
Quatermass and the Pit
1967★ 6.7
A mysterious artifact unearthed below a London Underground station proves to have powerful psychic effects on the people around.
Phase IV
1974★ 6.3
Arizona ants mock the food chain on their way to a desert lab to get two scientists and a woman.
The Horror of Frankenstein
1970★ 5.9
Brilliant but arrogant scientist Victor Frankenstein builds a man from spare body parts, only for the monster to come alive and wreak havoc.
Mystery of the Wax Museum
1933★ 6.5
A wax sculptor opens a new museum years after he is severely injured during a fire that destroyed his original collection. The disappearance of both people and corpses coincides with this grand reopening and leads a reporter to start investigating.
Twilight Zone: The Movie
1983★ 6.5
An anthology film presenting remakes of three episodes from the "Twilight Zone" TV series—"Kick the Can", "It's a Good Life" and "Nightmare at 20,000 Feet"—and one original story, "Time Out."
The Invisible Man
1933★ 7.5
After experimenting on himself and becoming invisible, scientist Jack Griffin, now aggressive due to the drug's effects, seeks a way to reverse the experiment at any cost.
Island of Terror
1966★ 5.9
A small island community is overrun with creeping, blobbish, tentacled monsters which liquefy and digest the bones from living creatures. The community struggles to fight back.
Alien Abduction
2014★ 5.9
A vacationing family encounters an alien threat in this pulse-pounding thriller based on the real-life Brown Mountain Lights phenomenon in North Carolina.
The Creeping Flesh
1973★ 5.9
A Victorian scientist returns to London with his paleontological bag-of-bones discovery from Papua New Guinea. Unfortunately, when exposed to water, flesh returns to the bones, unleashing a malevolent entity on the scientist's family and friends.
The Invasion
2007★ 6.0
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.
The Asphyx
1972★ 6.0
Hugo is a brilliant turn-of-the-century scientist, loved and respected by his family and friends, admired by his colleagues. But he is a man quickly becoming obsessed with a curious and frightening question...What is the mysterious apparition found in the photographs of his dying subjects?
4 Horsemen: Apocalypse
2022★ 6.0
A small team of scientists must race against time to stop what seems to be a cascade of global disasters signaling the possible apocalypse and end of days.
Meg 2: The Trench
2023★ 6.4
An exploratory dive into the deepest depths of the ocean of a daring research team spirals into chaos when a malevolent mining operation threatens their mission and forces them into a high-stakes battle for survival.