Karen Jane Allen is an American film and stage actress. She made her film debut in the comedy film Animal House (1978), which was soon followed by a small role in Woody Allen's romantic comedy-drama Manhattan (1979) and a co-lead role in Philip Kaufman's coming-of-age film The Wanderers (1979), before co-starring opposite Al Pacino in William Friedkin's crime thriller Cruising (1980).

National Lampoon's Animal House is a 1978 American comedy film directed by John Landis and written by Harold Ramis, Douglas Kenney and Chris Miller. It stars John Belushi, Tim Matheson, John Vernon, Verna Bloom, Thomas Hulce and Donald Sutherland. The film is about a trouble-making fraternity whose members challenge the authority of the dean of the fictional Faber College.