Blake Lively ("Gossip Girl," "Sisterhood of the Traveling Pants") will have a key role in the comedy-drama "The Private Lives of Pippa Lee" says Variety.
The film centers on the title character (Robin Wright Penn), whose life begins to unravel after her husband leaves her for a younger woman.
Julianne Moore, Wynona Ryder, Keanu Reeves, Maria Bello, Alan Arkin and Monica Bellucci have already been cast.
Rebecca Miller penned and will direct the film which begins shooting shortly in Connecticut.
