- Released on February 22, 1957 (New York premiere)
- Running time: 81 minutes
- Production and Distribution Co.: Universal Pictures
- Directed by Jack Arnold
- Written by Richard Matheson and Richard Alan Simmons (uncredited), from Matheson's novel
- Starring: Grant Williams, Randy Stuart, April Kent
- When Scott Carey begins to shrink because of exposure to a combination of radiation and insecticide, medical science is powerless to help him.
- Almost beyond the imagination . . . A strange adventure into the unknown ! [UK Theatrical]
- Victim of weird mist ! Day by day he shrinks! Science is baffled! Cat becomes monster! Terror at every turn! Deadly spider attacks! Lost in a flood's fury!
- A fascinating adventure into the unknown!
- The Most _Incredible_ Story - Ever!
- Hour by hour he gets smaller - and _smaller_!
- Moment by moment the terror mounts!