The Simpsons Movie is a 2007 American animated adventure comedy film version of the Fox television series The Simpsons. The film was directed by David Silverman, and stars the regular television cast of Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith, Hank Azaria, Harry Shearer, Tress MacNeille, and Pamela Hayden. It features Albert Brooks as Russ Cargill, the head of the Environmental Protection Agency. The plot follows Homer Simpson, whose irresponsibility gets the better of him when he pollutes the lake in Springfield after the town cleans it up. As the townspeople exile him and eventually his family abandons him, Homer works to redeem his folly by stopping Cargill when he intends to destroy Springfield.Previous attempts to create a film version of The Simpsons failed due to the lack of a script of appropriate length and production crew members. Eventually, producers James L. Brooks, Matt Groening, Al Jean, Mike Scully, and Richard Sakai began development of the film in 2001. A writing team consisting of Scully, Jean, Brooks, Groening, George Meyer, David Mirkin, Mike Reiss, John Swartzwelder, Jon Vitti, Ian Maxtone-Graham, and Matt Selman was assembled. They conceived numerous plot ideas, with Groening's being the one developed into a film. The script was re-written over a hundred times, and this creativity continued after the animation had begun in 2006. This meant hours of finished material was cut, which included cameo roles from Erin Brockovich, Minnie Driver, Isla Fisher, Kelsey Grammer, and Edward Norton. Tom Hanks and Green Day appeared in the final cut as themselves.