Invasion of the Saucer Men (a.k.a. Invasion of the Hell Creatures, with the working title Spacemen Saturday Night), is a 1957 black-and-white comic science fiction horror film produced by James H. Nicholson for release by American International Pictures. The film was directed by Edward L. Cahn and stars Steven Terrell and Gloria Castillo. The screenplay by Robert J. Gurney Jr. and Al Martin was based on the 1955 short story “The Cosmic Frame” by Paul W. Fairman. Invasion of the Saucer Men was released as a double feature with I Was a Teenage Werewolf.