Earth vs. the Flying Saucers (Also Known As: Invasion of the Flying Saucers ) is an Action, Sci-Fi film directed by Fred F. Sears and written by Donald E. Keyhoe (book) (as Major Donald E. Keyhoe), Curt Siodmak (screen story). It released on July 1956 (USA). The film stars Hugh Marlowe, Joan Taylor, Donald Curtis. Extra-terrestrials flying in high-tech flying saucers contact scientist Dr. Russell Marvin as part of a plan to enslave the inhabitants of Earth.