Wynona Rider has official joined the cast of Elevation Filmworks and Plan B Entertainment's upcoming dramedy The Private Lives of Pippa Lee. According to Variety, Robin Wright Penn and Julianne Moore will also be starring in the film.

The screenplay is based on Rebecca Miller's novel of the same name. The plot revolves around a faithful housewife whose husband falls for a younger, free spirited woman. This leads the wife to a "very quiet, nervous breakdown." Miller will be directing the film.

The Private Lives of Pippa Lee is set to start shooting this April in Connecticut.