Evolution is a 2001 American science fiction comedy film directed by Ivan Reitman and written by David Diamond and David Weissman, based on a story by Don Jakoby. The film stars David Duchovny, Orlando Jones, Seann William Scott, Ted Levine, and Julianne Moore in lead roles. The plot follows college professor Ira Kane (Duchovny) and geologist Harry Block (Jones) as they investigate a meteor crash in Arizona, only to discover that it harbors rapidly evolving extraterrestrial life forms.