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X: The Unknown

X: The Unknown

It rises from 2000 miles below the earth to melt everything in its path!

19566.11h 21m

Overview

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.

Directed by Leslie Norman
Written by Jimmy Sangster
Produced by Anthony Hinds
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Top Cast

Dean Jagger

Dean Jagger

Dr. Adam Royston

Leo McKern

Leo McKern

Inspector McGill

William Lucas

William Lucas

Peter Elliott

Edward Chapman

Edward Chapman

John Elliott

John Harvey

John Harvey

Maj. Cartwright

Michael Ripper

Michael Ripper

Sgt. Harry Grimsdyke

Anthony Newley

Anthony Newley

LCpl. 'Spider' Webb

Ian MacNaughton

Ian MacNaughton

Pvt. Haggis

Peter Hammond

Peter Hammond

Lt. Bannerman

Kenneth Cope

Kenneth Cope

Pvt. Lansing

Themes & Keywords

monsterscotlandradiationradioactivity

About X: The Unknown

X: The Unknown is a horror, science fiction, mystery film released in 1956 exploring themes of monster, scotland, radiation, radioactivity. Directed by Leslie Norman, it stars Dean Jagger, Leo McKern, William Lucas. 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 Similar to X: The Unknown

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We found 15 movies similar to X: The Unknown

If you enjoyed X: The Unknown, you'll love these handpicked recommendations. Each title below shares similar themes, tone, and storytelling style. Our algorithm analyzes genres, keywords, director filmography, and cast connections to find the closest matches. Whether you're looking for the same emotional depth, narrative structure, or visual style, these picks are curated to deliver the best viewing experience for fans of X: The Unknown.

Them!
35% Match

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Frankenstein Conquers the World
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The Incredible Shrinking Man
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Humongous
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Humongous(1982)

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The monstrous offspring of a violent crime grows up in seclusion on a remote island, where a boatful of hapless teens have shipwrecked, unaware of what's lurking in the woods.

The Damned
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The Blob
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A drive-in favorite, this sci-fi classic follows teenagers Steve and his best girl, Jane, as they try to protect their hometown from a gelatinous alien life form that engulfs everything it touches. The first to discover the substance and live to tell about it, Steve and Jane witness the blob destroying an elderly man, then it growing to a terrifying size. But no one else has seen the goo, and policeman Dave refuses to believe the kids without proof.

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Creature with the Atom Brain
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Murders, with victims dying from spines broken by brute strength, erupt in the city and the killers, when encountered, walk away unharmed by police bullets which strike them. A police doctor's investigation of the deaths leads to the discovery of an army of dead criminal musclemen restored to life, remotely controlled by a vengeful former crime boss and a former Nazi scientist, from the latter's laboratory hidden in the suburbs.

Bride of Frankenstein
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Dr. Frankenstein and his monster both turn out to be alive after being attacked by an angry mob. The now-chastened scientist attempts to escape his past, but a former mentor forces him to assist with the creation of a new creature.

Die, Monster, Die!
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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.