Rat is a 2000 comedy film directed by Steve Barron and starring Imelda Staunton and Pete Postlethwaite. The film focuses on the transformation of a working-class man into a rat and how his family copes with the startling change. The film's scenario is partly based on Franz Kafka's The Metamorphosis.

Steven Barron is an Irish-British filmmaker and music video director. Among the music videos he has directed are "Billie Jean" by Michael Jackson, "Summer of 69" and "Run to You" by Bryan Adams, "Money for Nothing" by Dire Straits, "Electric Avenue" and "I Don't Wanna Dance" by Eddy Grant, "Going Underground" by The Jam, "Don't You Want Me" by The Human League, "Baby Jane" by Rod Stewart, "Pale Shelter" by Tears for Fears, "Africa" by Toto, and "Take On Me" by A-ha. The videos for "Take On Me" and "Billie Jean" have each garnered over 1 billion views on YouTube. Barron also directed several films, including Teenage Mutant Ninja Turtles (1990), Coneheads (1993), and The Adventures of Pinocchio (1996).