Producers wanted the slang that was spoken in the movie to be current and relevant to the time period in which the movie was released. This proved to be difficult as words take on different meaning to become Ebonics almost everyday. (Whatever words they used during filming might not have been in circulation by the time the film was released.) In order to play it safe, some of the Ebonics spoken in the movie was made up by the actors on the spot.
Steve Martin, Angus T. Jones, and Missi Pyle are from Texas. Queen Latifah is from New Jersey, Eugene Levy is from Canada, Jean Smart is from Washington, Kimberley J. Brown is from Maryland, and Joan Plowright is from England.