1941 is a 1979 period comedy film directed by Steven Spielberg, written by Robert Zemeckis and Bob Gale, and featuring an ensemble cast including Dan Aykroyd, Ned Beatty, John Belushi, John Candy, Christopher Lee, and Toshiro Mifune. The film is about a panic in the Los Angeles area after the 1941 attack on Pearl Harbor.

Although not as financially or critically successful as many of Spielberg's other films, it received belated widespread popularity after an expanded version aired on ABC, and its subsequent successful home video reissues, raising it to cult status.

Co-writer Gale stated the plot is loosely based on what has come to be known as the Great Los Angeles Air Raid of 1942 as well as the shelling of the Ellwood oil refinery, near Santa Barbara by a Japanese submarine. Many other events in the film were based on real incidents, including the Zoot Suit Riots and an incident in which the U.S. Army placed an anti-aircraft gun in a homeowner's yard on the Maine coast.

On Saturday, December 13, 1941 at 7:01 a.m., a woman goes swimming somewhere on the California coast, only to find a Japanese submarine surfacing beneath her. The submarine crew realizes they have arrived in Hollywood, and the vessel submerges while the woman swims to safety.