The Phantom from 10,000 Leagues 1955
Plot: The film follows a pair of marine biologists who are investigating a series of mysterious deaths of divers in a remote part of the ocean. They soon discover that a giant, radioactive sea monster is responsible for the deaths. The monster, which is a giant blob, is attacking the divers and is a threat to the world. The biologists must now find a way to stop the monster before it is too late.