Mean Girls is a 2004 American teen comedy film produced by Lorne Michaels and directed by Mark Waters from a screenplay by Tina Fey. The film stars Lindsay Lohan in the lead role, with Rachel McAdams, Tim Meadows, Ana Gasteyer, Amy Poehler, and Fey in supporting roles. The plot centers on Cady Heron (Lohan), a naïve teenager who transfers to an American high school after years of homeschooling in Africa, where she quickly befriends outcasts Janis and Damian, with the trio forming a plan to exact revenge on Regina George (McAdams), the leader of an envied clique known as "the Plastics".