X: The Unknown (1956)

e 12 05/01/1957 (US) HorrorScience FictionMystery 1h 21m

It rises from 2000 miles below the earth to melt everything in it's path!


When a fissure explosively opens in an English mud flat during a military exercise there, injuring one soldier and killing another, 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.

  1. Jimmy Sangster

    Screenplay, Story

  2. Leslie Norman


  3. Joseph Losey


Top Billed Cast

  1. Dean Jagger

    Dean Jagger

    Dr. Adam Royston

  2. Leo McKern

    Leo McKern

    Inspector McGill

  3. William Lucas

    William Lucas

    Peter Elliott

  4. Edward Chapman

    Edward Chapman

    John Elliott

  5. John Harvey

    Maj. Cartwright

  6. Michael Ripper

    Michael Ripper

    Sgt. Harry Grimsdyke

  7. Anthony Newley

    Anthony Newley

    LCpl. 'Spider' Webb

  8. Ian MacNaughton

    Pvt. Haggis

  9. Peter Hammond

    Peter Hammond

    Lt. Bannerman

  10. View More

Full Cast & Crew

X: The Unknown
X: The Unknown

Status Released

Original Language English

Budget -

Revenue -


Content Score


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