Planet of the Vampires (Italian: Terrore nello spazio, literally "Terror in space") is a 1965 Italian/Spanish science fiction horror film directed by Mario Bava. The film stars Barry Sullivan and Norma Bengell. The screenplay, by Bava, Alberto Bevilacqua, Callisto Cosulich, Antonio Roman and Rafael J. Salvia, was based on an Italian-language science fiction short story, Renato Pestriniero's "One Night of 21 Hours". The story follows the horrific experiences of the crew members of two giant spaceships that have crash landed on a forbidding, unexplored planet. The disembodied inhabitants of the world possess the bodies of the crew who died during the crash, and use the animated corpses to stalk and kill the remaining survivors.