The Devil's Rain is a 1975 horror film directed by Robert Fuest. It was one of several B-films in which William Shatner starred between the original Star Trek television series and Star Trek: The Motion Picture (1979). Other cast members included Tom Skerritt, Ernest Borgnine, Eddie Albert, Ida Lupino, Keenan Wynn and John Travolta in his film debut in a minor role. Satanist Anton LaVey is credited as the film's technical advisor and appeared in the film playing a minor role. It was in this movie that the mask eventually used by Michael Myers in Halloween debuts.