Julie, an American on vacation in Mexico, spots a giant, one-eyed amoeba rising from the ocean, but when she tries to tell the authorities, no one believes her. She finally teams up with a marine biologist in an attempt to destroy it.
Unfortunately the movie Monster from the Ocean Floor is not yet available on HBO Max.
| Directing | Wyott Ordung | Director |
| Writing | Bill Danch | Screenplay |
| Production | Roger Corman | Producer |
| Camera | Floyd Crosby | Director of Photography |
| Sound | André Brummer | Original Music Composer |
| Editing | Edward Sampson | Editor |
| Art | Ben Hayne | Production Design |
| Art | Ben Hayne | Art Direction |
| Production | David Kramarsky | Production Manager |
| Sound | Jack Milner | Sound Editor |
| Visual Effects | Bob Baker | Creature Design |
