The Devil's Rain is a 1975 supernatural horror film directed by Robert Fuest. The ensemble cast includes William Shatner, Tom Skerritt, Ernest Borgnine, Eddie Albert, Ida Lupino and Keenan Wynn. John Travolta made his film debut in a minor role. During filming, Travolta converted to the Scientology religion after co-star Joan Prather gave him a copy of the book Dianetics written by Scientology founder L. Ron Hubbard. Satanist Anton LaVey is credited as the film's technical advisor and appeared in the film playing a minor role. Although it takes place in an unspecified part of the American Southwest, the movie was shot in Durango, Mexico. It is an international co-production between Mexico and the United States.