The Beast from 20,000 Fathoms is a 1953 American science fiction action horror film directed by Eugène Lourié, with special effects by Ray Harryhausen. The film stars Paul Christian, Paula Raymond, Cecil Kellaway, and Kenneth Tobey. The screenplay is based on Ray Bradbury's 1951 short story "The Fog Horn", specifically the scene where a lighthouse is destroyed by the title character. The film is about the Rhedosaurus, a dinosaur that is released from its frozen hibernating state by an atomic bomb test in the Arctic Circle and begins to wreak a path of destruction as it travels southward, eventually arriving at its ancient spawning grounds, which includes New York City.The Beast from 20,000 Fathoms was one of the early atomic monster films; it inspired a generation of creature features such as Godzilla.