Directed by: Terence Fisher
Starring: Christopher Lee, Peter Cushing, Barbara Shelley, Richard Pasco
Trivia: Yet another movie Peter Cushing and Sir Christopher Lee did together for Hammer Films. They'd previously done several Dracula movies, The Mummy, Frankenstein, and The Hound of the Baskervilles.
Trivia: Michael Goodliffe plays Richard Pasco's father in the movie, even though in real life he's only 12 years older than Pasco.
Other mistake: There were no gorgons named Megara. The three that existed were Medusa, Euryale, and Stheno.
Prof. Karl Meister: Good heavens, Paul. What's happened to you?
Paul Heitz: Oh, why I've um, I've been ill.
Prof. Karl Meister: Ill? You must have been in your grave and dug your way out.