Austrian-born American motion-picture scenarist, director, and producer known for films that humorously treat subjects of controversy and offer biting indictments of hypocrisy in American life.

Wilder attended Viennese schools, including the University of Vienna (which he left after a year), and was a reporter in Vienna and in Berlin. His first film scenario was a collaboration on the semidocumentary Menschen am Sonntag (1929; “People on Sunday”), of which he was also codirector. For the next four years he wrote scripts for German and French films. The advent of Adolf Hitler in 1933 and Wilder's Jewish background made emigration necessary; he moved to France and then the United States, eventually settling in California.

Wilder established his reputation as a director with the film noir classic Double Indemnity (1944), produced by Charles Brackett, with whom he had already written some screenplays. Wilder spent 1945 in Germany in charge of the U.S. Army's Psychological Warfare Division. Collaborating first with Brackett until 1950 and then with I.A.L. Diamond from 1957, he then directed films that he also wrote and frequently produced. His work often focused on subjects that had previously been considered unacceptable screen material, including alcoholism (The Lost Weekend, 1945), prisoner-of-war camps (Stalag 17, 1953), and prostitution (Irma La Douce, 1963). A number of his films, such as Sunset Boulevard (1950) and The Apartment (1960), weighed the emptiness of modern life. Later films, including Avanti! (1972), Fedora (1978), and Buddy Buddy (1981), explore this same theme. Some of Wilder's greatest films were comedies, including Sabrina (1954), The Seven Year Itch (1955), Love in the Afternoon (1957), Some Like It Hot (1959), and One, Two, Three (1961).

During his career, Wilder garnered 20 Academy Award nominations and won six Oscars, including best director (The Lost Weekend, The Apartment) and best screenplay (Sunset Boulevard); at the 1988 Academy Awards he was given the Irving G. Thalberg Award. He received a lifetime achievement award from the American Film Institute in 1986.