Judy Greer, Chloe Sevigny, Cybill Shepherd and Billy Dee Williams are set to star with Patrick Wilson in dark romantic comedy “Barry Munday.”According to Hollywood Reporter, Wilson plays the title character, a womanizer who gets attacked, loses his testicles and discovers that a brief fling with a woman (Greer) he can’t remember has led to a paternity suit.That really sounds like a dark comedy.Sevigny plays the woman’s flirtatious sister, who has a secret life and no compunctions about coming on to Munday. Shepherd plays their mother, and Williams is cast as the tough boss at Munday’s insurance company