Mean Girls is a 2004 American teen comedy film directed by Mark Waters and written by Tina Fey. The film is based in part on Rosalind Wiseman's non-fiction self-help book Queen Bees and Wannabes, which describes female high school social cliques and the damaging effects they can have on girls.
The film stars Lindsay Lohan, Rachel McAdams, Tina Fey, Lacey Chabert, Lizzy Caplan, Daniel Franzese, Jonathan Bennett and Amanda Seyfried (in her film debut). Saturday Night Live (SNL) creator Lorne Michaels produced the film. Screenwriter and co-star of the film, Tina Fey, was a long-term cast member and writer for SNL. Also featuring appearances from SNL cast members Tim Meadows, Ana Gasteyer, and Amy Poehler. The film marks Lohan's second collaboration with director Waters, the first being Freaky Friday (2003), released a year earlier. Although set in Evanston, Illinois (wealthy Chicago suburbs), the film was mostly shot in Toronto, Ontario, Canada.
The film grossed $129 million worldwide and has developed a cult following. A sequel, Mean Girls 2, was released in 2011.