Invasion of the Saucer Men (also known as Invasion of the Hell Creatures, with a working title of Spacemen Saturday Night) is a 1957 sci-fi horror and comedy film starring Steven Terrell and Gloria Castillo and personally produced by James H. Nicholson for his American International Pictures. The screenplay by Robert J. Gurney Jr. and Al Martin was based on the 1955 short story "The Cosmic Frame" by Paul W. Fairman. The film was released as a double feature with I Was a Teenage Werewolf.