Robot Monster - 1953

Robot Monster (also released as Monster from Mars) is a 1953 American independent 3D science-fiction horror film produced and directed by Phil Tucker, and starring George Nader, Claudia Barrett, and George Barrows. The film follows an alien robot who, while on a mission to destroy Earth and humanity, betrays the orders of his master, the Great Guidance, by protecting a woman he was tasked to murder.