The first manned expedition to Mars is invaded by an unknown life form, which stows away on the rescue ship.
You can now watch It! The Terror from Beyond Space online on the following streaming providers in the United States.
| Sound | Paul Sawtell | Original Music Composer |
| Crew | Arthur Wasson | Property Master |
| Costume & Make-Up | Layne Britton | Makeup Artist |
| Sound | Bert Shefter | Original Music Composer |
| Art | Herman N. Schoenbrun | Set Decoration |
| Visual Effects | Paul Blaisdell | Creature Design |
| Directing | Edward L. Cahn | Director |
| Camera | Kenneth Peach | Director of Photography |
| Writing | Jerome Bixby | Screenplay |
| Production | Robert E. Kent | Producer |
| Directing | Ralph E. Black | Assistant Director |
| Sound | Robert G. Carlisle | Sound Effects Editor |
| Editing | Grant Whytock | Supervising Film Editor |
| Art | William Glasgow | Art Direction |
