Author Jonathan Tropper’s 2009 novel, “This is Where I Leave You,” is all set to become a feature film over at Warner Bros., and the production is getting the cast to prove it. The book, which details a down-on-his-luck man’s week of insanity as he’s forced to live in the same house with his estranged mother and siblings for seven days, has been adapted into a screenplay by Tropper himself, and is set to be directed by Rock of Ages director Adam Shankman. The main character, Judd, has a wife who has just cheated on him with his boss, a boss who has just slept with his wife, a mother who has just lost a husband, and three neurotic siblings that he must spend a week with, due to his dying father’s last request. Needless to say, this one is going to be an ensemble piece, and Shankman has just kicked the casting process off with a bang. Deadline New Rochelle reports that Jason Bateman has signed on to play the lead role, Zac Efron and Leslie Mann have come on as two of his siblings, and Goldie Hawn is set to act for the first time since 2002’s girl power dramedy The Banger Sisters as the family’s matriarch. If you’re keeping track, that means that there’s still one sibling, a wife, and a boss that’s left to be cast, so before everything is all said and done this movie could become even more star-studded.