The Beast from 20,000 Fathoms is a 1953 American independent monster film directed by Eugène Lourié, with stop motion animation by Ray Harryhausen. It is partly based on Ray Bradbury's 1951 short story of the same name, which was later reprinted as "The Fog Horn". In the film, the Rhedosaurus, a giant dinosaur is released from its frozen state in the Arctic by an atomic bomb test. Paul Christian stars as Thomas Nesbitt, the foremost surviving witness of the creature before it causes havoc while traveling toward New York. Paula Raymond, Cecil Kellaway, and Kenneth Tobey are featured in supporting roles.