The Lost Weekend is a 1945 American film noir drama film directed by Billy Wilder and starring Ray Milland and Jane Wyman. The film was based on Charles R. Jackson's 1944 novel of the same name about an alcoholic writer. The film was nominated for seven Academy Awards and won four: Best Picture, Best Director, Best Actor, and Best Writing (Adapted Screenplay).
In 2011, The Lost Weekend was added to the National Film Registry of the Library of Congress as being "culturally, historically, or aesthetically significant."