The Other Sister is a 1999 American romantic comedy film directed by Garry Marshall and stars Juliette Lewis, Giovanni Ribisi, Diane Keaton, Tom Skerritt and Sarah Paulson. It was filmed in Long Beach, Pasadena, and San Francisco, California. The film was written by Marshall, Bob Brunner and Malia Scotch Marmo (uncredited).

Garry Kent Marshall was an American screenwriter, film director, producer and actor. Marshall began his career in the 1960s as a writer for The Lucy Show and The Dick Van Dyke Show until he developed the television adaptation of Neil Simon's play The Odd Couple. He rose to fame in the 1970s for creating the ABC sitcom Happy Days (1974–1984).