When a Stranger Calls is a 2006 American psychological horror slasher film directed by Simon West and written by Jake Wade Wall. The film stars Camilla Belle, Brian Geraghty, Katie Cassidy, and Clark Gregg. Belle plays a babysitter who starts to receive threatening phone calls from an unidentified stranger, played by both Tommy Flanagan and Lance Henriksen. The film is a remake of Fred Walton's 1979 horror film of the same name, which became a cult classic for its opening 20 minutes, which this remake extends to a feature-length film.