The Day Mars Invaded Earth
 The Day Mars Invaded Earth is a science fiction film made by API released in 1963 by Twentieth Century Fox and directed and produced by Maury Dexter. Dexter said the title was thought up by Robert Lippert to evoke memories of The Day the Earth Stood Still.The film's plot is a cross between The War of the Worlds (1953) and Invasion of the Body Snatchers (1956) and involves Martians duplicating a scientist and his family to prepare for their invasion. The film was shot at Greystone Mansion.