Project Moonbase is a black and white 1953 science fiction film directed by Richard Talmadge. The film is also known as Project Moon Base, and is based on a story by Robert A. Heinlein. Heinlein shares screenwriting credit. Mystery Science Theater 3000 featured it as an episode in its first Comedy Channel season in January 1990, and it was also broadcast in a syndicated television episode of the Canned Film Festival in 1986. The interior set of the spaceship was later used in the film Cat Women of the Moon 1953.