EXCLUSIVE: Krysten Ritter has joined Christoph Waltz and Amy Adams in Big Eyes. The Tim Burton-directed film is about Margaret and Walter Keane, the married couple whose paintings of large-eyed children became one of the first mass-marketed art sensations of the 1950s and ’60s. Adams plays the San Francisco housewife who actually generated the paintings. Her husband (Waltz) was a charismatic marketing wiz who went on talk shows claiming he was also responsible for the brush strokes. The movie is about how Margaret came out of her shell to try and claim the credit she deserved, after they split up. Ritter, most recently seen as the title character in Don’t Trust The B____ In Apt. 23 and in Breaking Bad, will play DeeAnn, the free-spirited confidante to Margaret who tries to coax her friend to come out of her shy shell. Scott Alexander and Larry Karaszewski wrote the script and The Weinstein Company is financing and distributing. Alexander, Karaszewski, Burton and Electric City Entertainment’s Lynette Howell are producing the film, which begins production this summer. Ritter is repped by WME, is co-managed by The Group Entertainment and Sanders Armstrong Caserta, and lawyered by Dave Feldman.