

It rises from 2000 miles below the earth to melt everything in its path!
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,…
X: The Unknown (1956) is a horror, science fiction, and mystery film directed by Leslie Norman. It stars Dean Jagger, Leo McKern, and William Lucas. The film runs for 1 hour 21 minutes. Audiences have made it well received, with an average score of 6.1 out of 10 from 75 votes.

Dean Jagger
Dr. Adam Royston

Leo McKern
Inspector McGill

William Lucas
Peter Elliott

Edward Chapman
John Elliott

John Harvey
Maj. Cartwright

Michael Ripper
Sgt. Harry Grimsdyke

Anthony Newley
LCpl. 'Spider' Webb

If you enjoy fans of horror, science fiction, and mystery, X: The Unknown is worth a spot on your watchlist. The surest way to know is to see whether the friends who share your taste actually loved it—that is exactly what FriendsRecommend shows you before you press play.
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X: The Unknown stars Dean Jagger, Leo McKern, William Lucas, and Edward Chapman, and was directed by Leslie Norman.
X: The Unknown has a runtime of 1 hour 21 minutes.
X: The Unknown was released in 1956.
X: The Unknown is a horror, science fiction, and mystery film.
X: The Unknown holds an average audience score of 6.1 out of 10. The best signal, though, is a recommendation from a friend who shares your taste—FriendsRecommend shows you exactly that.
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Pvt. Haggis
This product uses the TMDB API but is not endorsed or certified by TMDB.
This product uses the TMDB API but is not endorsed or certified by TMDB. Streaming availability data is provided by JustWatch.