The Wicker Man (Robin Hardy, 1973)

Christopher Lee in The Wicker Man

Cast: Edward Woodward, Christopher Lee, Diane Cilento, Britt Ekland, Ingrid Pitt, Lindsay Kemp, Russell Waters, Aubrey Morris, Irene Sunters. Screenplay: Anthony Shaffer, based on a novel by David Pinner. Cinematography: Harry Waxman. Art direction: Seamus Flannery. Film editing: Eric Boyd-Perkins. Music: Paul Giovanni. 

Edward Woodward plays a police officer from the mainland who goes to investigate the disappearance of a young girl on a remote Scottish island and falls into a terrible trap. This celebrated horror film benefits from some intelligent writing, particularly in the conflict of the bigoted Christian policeman and the carnally pagan islanders. Christopher Lee, who plays the island's sophisticated laird, called it one of his favorite roles, and he brings his usual suavely sinister presence to it.