The Day Mars Invaded Earth is an independently made 1963 black-and-white CinemaScope science fiction film, produced and directed by Maury Dexter, that stars Kent Taylor, Marie Windsor, and William Mims. The film was released by Twentieth Century Fox. Dexter later said the film's title came from Associated Producers' Robert L. Lippert and was meant to evoke memories of Fox's 1951 classic The Day the Earth Stood Still.