Jeremy Irons (Appaloosa) and Kim Cattrall (Sex and the City) and Tom Sturridge (Pirate Radio) have signed on to star in The Treehouse.  Originally titled The Master of Farnow, the film is set in "in pre-World War I Germany detailing the story of a failed student, his glamorous cousin, her mother and the student's father."  According to THR, Lajos Koltai (Evening) will direct the $10 million production from a script by Paul Mayersberg (Croupier), based on a novel by Eduard von Keyserling.Irons will next be seen in Margin Call, which was recently picked up from Sundance for an October 2011 release.  Sturridge's next big project positions the actor opposite Sam Riley, Garrett Hedlund, and Kristen Stewart in Walter Salles' highly anticipated adaptation of On the Road.