Eddie Murphy is Norbit.

While on the set of the Warner Bros film, Norbit...Eddie Murphy is said to be really phoning it in; An unnamed executive visiting the set surmised. He only appeared in close ups and key scenes with the main actors. The executive also feared that Murphy will keep up his trademark stoicism when the time come to promote the film in the media. Also, White Chicks co-star Marlon Wayans will play his character....With the largest Afro ever conceived for movie making.