Sunset Boulevard (styled in the main title on-screen as SUNSET BLVD.) is a 1950 American black comedy film noir directed and co-written by Billy Wilder, and produced and co-written by Charles Brackett. It was named after a major street that runs through Hollywood, the center of the American movie industry.

The film stars William Holden as Joe Gillis, a struggling screenwriter, and Gloria Swanson as Norma Desmond, a former silent-film star who draws him into her demented fantasy world, where she dreams of making a triumphant return to the screen. 

Erich von Stroheim plays Max von Mayerling, her devoted butler, and Nancy Olson, Jack Webb, Lloyd Gough, and Fred Clark appear in supporting roles. Director Cecil B. DeMille and gossip columnist Hedda Hopper play themselves, and the film includes cameo appearances by leading silent-film actors Buster Keaton, H. B. Warner, and Anna Q. Nilsson.