Read the Mama's Boy movie synopsis, view the movie trailer, get cast and crew information, see movie photos, and more on Movies.com. Review: Jeff Daniels, Jon Heder, and Diane Keaton star in director Tim Hamilton's domestic comedy concerning a slacker who finds his status as man of the... The film was distributed by Warner Bros. Baby Mama (2008) - IMDb Director: Michael McCullers. . Mama's Boy | Movies.com - New Movies | Movie Trailers | Movie. Actors: Amy Poehler: Angie Â· Tina Fey: Kate Â· Greg Kinnear: Rob Â· Dax Shepard: Carl Â· Romany Malco: Oscar Â· Sigourney Weaver. Starring Jon Heder, Diane Keaton, Jeff Daniels. Mama's Boy (film) - Wikipedia, the free encyclopedia Mama's Boy is a 2007 comedy starring Diane Keaton and Jon Heder, and features music by Mark Mothersbaugh. . The movie I thought was slap-stick comedy, but enough â€¦ more Â» Mama's Boy | Moviefone - Movies | Movie Times | Tickets | Movies. Jeff Daniels, Jon Heder, and Diane Keaton star in director Tim Hamilton's domestic comedy concerning a slacker who. Mama's Boy | Trailer and Cast - Yahoo! Movies Eccentric Jeffrey Mannus is 29-years-old and still lives at home with his angelic mom, Jan. Mama's Boy - Rotten Tomatoes - Movies | Movie Trailers | Reviews.