Actors Christopher Walken, Mia Farrow, Selma Blair have just joined the cast of the new Todd Solondz movie Dark Horse, according to The Hollywood Reporter.

Jordan Gelber stars in the new movie as a thirtysomething man who lives with his parents (Christopher Walken and Mia Farrow) and works for his father's company while maintaining an immense collection of toys. He finds his match in Selma Blair's character, another thirtysomething who lives with her parents, as he tries to shed the "dark horse" status he has in his family.

Aasif Mandvi plays the somewhat-ex-boyfriend of Selma Blair's character, with Justin Bartha portraying Jordan Gelber's successful older brother and Donna Murphy appearing as the secretary of Christopher Walken's character.

Shooting just commenced this week on location in Long Island and Westchester County.