Gorgon, The (1964, U.K.)

In early-twentieth-century middle-Europe, villagers are literally becoming petrified. Although the authorities try to hush the matter up, it is apparent that at the full moon, Megaera, a Gorgon, leaves her castle lair and anyone looking on her face is turned to stone. When this fate befalls a visitor, experts from the University of Leipzig arrive to try and get to the bottom of it all.

This classic Hammer Horror stars Peter Cushing (The Hound of the Baskervilles, Star Wars), Christopher Lee (Dracula, Lord of the Rings) and Hammer favourite Barbara Shelley (The Camp on Blood Island, Quartermass and the Pit).