My Idiot Brother… Quite interesting title for Jesse Peretz‘s comedy that’s currently filming in New York. And, what’s even more interesting is the fact that Hugh Dancy (Blood and Chocolate, Adam), Kathryn Hahn (Revolutionary Road, Step Brothers), Shirley Knight (As Good as It Gets) and Janet Montgomery (Black Swan) have signed on to join the cast that already includes Paul Rudd, Elizabeth Banks, Zooey Deschanel, Rashida Jones, Adam Scott and Emily Mortimer. Sounds pretty good, you must admit… The film, already described as “a comedy about family and the sacrifices it takes to deal with them” revolves around struggling idealist (Rudd) that stays at the homes of his three more successful and ambitious sisters (Banks, Deschanel, Mortimer) and brings truth, happiness and a sunny disposition into their lives. In other words, he wreaks havoc, while dealing with their overbearing mother. The mother was the last major part to be cast and she will be played by Shirley Knight. Dancy and Montgomery will play acquaintances of the sisters while Hahn will play Rudd’s ex-girlfriend. Written by Evgenia Peretz and David Schisgall, My Idiot Brother is being produced by Bregman, Saraf and Turtletaub for their respective companies.Caroline Jaczko, Stefanie Azpiazu and Aleen Keshishian are executive producers.