I didn't even know he had a new one in the works, but apparently it's already being filmed.

Christopher Walken, Mia Farrow and Selma Blair will star opposite Jordan Gelber in Dark Horse, the new drama from Todd Solondz.

The Hollywood Reporter says the movie "centers on a thirtysomething man (Gelber) in arrested development who lives with his parents (Walken and Farrow), reluctantly works for his father and avidly collects toys. He seeks out a thirtysomething woman (Blair) in arrested development in an attempt to shed the 'dark horse' status in his family and finally accomplish something."