Formerly known as My Idiot Brother, the first trailer for Paul Rudd’s new film has arrived. Ned (Rudd) is an idealist, who’s prone to doing dumb things, including selling weed to a uniformed police officer and getting put on parole. His three sisters (Elizabeth Banks, Zooey Deschanel and Emily Mortimer) are ambitious, while his mother (Shirley Knight) is overbearing. Ned crashes at each of their homes, in succession, and brings truth, happiness and a sunny disposition into their lives. In other words, he wreaks havoc. The film will be in cinemas later this year.