Contrary to what their paychecks would suggest, movies are not just made of stars. Actors in supporting roles are either up-and-coming bit players hoping to become movie stars, or over-the-hill movie stars looking to prolong their last fleeting moments of fame. Regardless of which side of the chute they land on, it is imperative that you remind them at every opportunity that they are not the stars of this film. The director is the star of this film.