1956 X the Unknown

X the Unknown – 1956

A Hammer film production released by Exclusive films (UK)I and Warner Brothers (USA) 

Opening credit: – “The Producers wish to acknowledge the co-operation received Irom the War Office during the production of this film

RCA Sound System
Produced at Bray Studios 

Black & White 75 mins 


In the remote Scottish highlands, army exercises are disturbed by violent earth tremors and an explosion which kills one soldier and badly burns another. Scientists are called in to investigate the great chasm left by the explosion and soon discover that an enormous blob of radioactive slime lurks within it. But worse is to come – the slime is capable of movement and begins to venture out above ground in search of more radioactivity, threatening to destroy anything and anyone in its path!

 Watch the film on YouTube


Special Effects
Make-up and Special Make-up Effects
Production Manager
Sound Mixer
Assistant Director
Sound Editor
Camera Operator
Director of Photography
Music Composed by
Musical Director
Story and Screenplay by
Executive Producer
Produced by
Directed by 

James Needs
Bowie Margutti Ltd. and Jack Curtis
Philip Leakey
Jimmy Sangster
Jock May
Chris Sutton
Alfred Cox
June Randall
Molly Arbuthnot
Len Harris
Gerald Gibbs
James Bernard
John Hollingsworth
Jimmy Sangster
Michael Carreras
Anthony Hinds
Leslie Norman


Dr Royston
Inspector McGill
Private Webb
Major Cartwright
Lt Bannerman
Sergeant Grimsdyke
Old Tom
Burned Soldier
Ian Osborne
and with

Dean Jagger
Edward Chapman
Leo McKern
Anthony Newley
William Lucas
John Harvey
Peter Hammond
Michael Ripper
Norman Macowan
Kenneth Cope
Edwin Richfield
Fraser Hines
Jameson Clark
Marianne Brauns
Ian McNaughton
Jane Aird
Neil Hallett
Michael Brook


A very young Fraser Hines appears in this film. He later played Jamie alongside Patrick Troughton in BBC TV’s “Doctor Who”, as well as Joe Sugden in the Yorkshire TV soap opera Emmerdale Farm”. Film critic Barry Norman is the son of Leslie Norman, the director of this film.

Details were complied viewing the actual film. 
Source of viewing copy – The Hammer Graveyard Collection