The Black Scorpion is a 1957 black-and-white giant arachnid horror film from Warner Bros., produced by Jack Dietz and Frank Melford, directed by Edward Ludwig, and starring Richard Denning, Mara Corday, Carlos Rivas, and Mario Navarro. The film's stop-motion animation special effects were created by Willis O'Brien. In the film, volcanic activity releases giant prehistoric scorpions from the earth. They wreak havoc in the rural countryside and eventually threaten Mexico City.