Robot Monster (1953) is a Science Fiction, Horror film that follows ro-Man, an alien robot who greatly resembles a gorilla in a diving helmet, is sent to earth to destroy all human life. Ro-Man falls in love with one of the last six remaining humans, and struggles to understand how his programming can instruct him to kill her while his heart demands that he can't. Currently, you can watch Robot Monster on Cultpix, Amazon Video. Streaming availability may vary by country and platform over time. It has a user rating of 4.5 out of 10 from 105 votes. Fans of science fiction movies may also want to explore similar titles below.