Olivia Wilde has joined the cast of Harold Ramis' upcoming comedy Year One. According to Variety, Jack Black is the lead in this Judd Apatow produced project.

The plot of the film is currently being kept under wraps. The rest of the cast includes Michael Cera, Christopher Mintz-Plasse, Oliver Platt, David Cross, Vinnie Jones, Juno Temple and June Raphael. Wilde will play Princess Inanna, the love interest of Black's character.

The film just started shooting this week in New Mexico and Louisiana.

Year One was released June 19th, 2009 and stars Jack Black, Michael Cera, Oliver Platt, David Cross, Christopher Mintz-Plasse, Vinnie Jones, Hank Azaria, Juno Temple. The film is directed by Harold Ramis.