X the Unknown 1956 Dean Jagger

"X the Unknown," starring Dean Jagger:

Plot: A radioactive, mud-like creature terrorizes a Scottish village.

Cast:
Dean Jagger as Dr. Adam Royston
Edward Chapman as John Elliott
Leo McKern as "Mac" McGill
William Lucas as Peter Elliott
Peter Hammond as Lieutenant Bannerman
Anthony Newley as Lance Corporal "Spider" Webb
Ian MacNaughton as Haggis
Michael Ripper as Sergeant Harry Grimsdyke
Michael Brooke as Willie Harding
Frazer Hines as Ian Osborne
Directed by: Leslie Norman and Joseph Losey
Written by: Jimmy Sangster
Release date: May 1957 (USA)
Running time: 1 hour and 21 minutes
The film is considered a landmark in the science fiction horror genre, and it is one of Hammer Film Productions' most popular films. It was made during the Cold War, and it reflects the anxieties of that time period. The film has been praised for its special effects, its acting, and its atmosphere.

Here are some additional facts about the film:
It was originally going to be directed by Val Guest, but he was replaced by Norman and Losey.
The creature was created by Bill Butt, who also created the creatures for the films "The Quatermass Xperiment" (1955) and "Quatermass 2" (1957).
The film was shot on location in Scotland.
It was a box office success, grossing over $2 million.