CS #140 Earth vs. the Flying Saucers is a 1956

CS #140 Earth vs. the Flying Saucers is a 1956
starring Hugh Marlowe, Joan Taylor, and Donald Curtis

American science fiction film starring Hugh Marlowe, Joan Taylor, and Donald Curtis, about an alien invasion using advanced flying saucers. The film was directed by Fred F. Sears and featured stop-motion special effects by Ray Harryhausen. It tells the story of a scientist who discovers that alien spacecraft are responsible for mysterious explosions, leading to a battle for Earth's survival.