Monster from the Ocean Floor (1954)

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.

Directed by: Wyott Ordung

Starring: Anne Kimbell, Stuart Wade, Dick Pinner, Inez Palange, Jonathan Haze, Roger Corman

Links: IMDb, Movie posters, Movie stills