John Lithgow has joined the star-studded cast of movie musical DREAMGIRLS. The former THIRD ROCK FROM THE SUN will play a ruthless Hollywood producer who savages Beyonce Knowles' character, DEENA, when she goes in search of a movie career. Lithgow's character has been written into the film version of the stage musical. Meanwhile, the movie, which also features Eddie Murphy, Danny Glover and Jamie Foxx, has a confirmed US release date - 22 December (06).