Magnolia is a 1999 American drama film written, directed and co-produced by Paul Thomas Anderson. It stars an ensemble cast, including Jeremy Blackman, Tom Cruise, Melinda Dillon, Philip Baker Hall, Philip Seymour Hoffman, Ricky Jay, William H. Macy, Alfred Molina, Julianne Moore, Michael Murphy, John C. Reilly, Jason Robards (in his final film role) and Melora Walters. The film is an epic mosaic of interrelated characters in search of happiness, forgiveness and meaning in the San Fernando Valley. The script was inspired by the music of Aimee Mann, who contributed several songs to its soundtrack.

The film had a limited theatrical release on December 17, 1999, before expanding wide on January 7, 2000. Magnolia received acclaim from critics. It grossed $48.5 million against a $37 million budget. Of the ensemble cast, Cruise was nominated for Best Supporting Actor at the 72nd Academy Awards and won the award in that category at the Golden Globes. It has been regarded by many sources as one of the greatest films of all time.