8. Including A Handful Of Batman's Supporting Characters
It was stated previously that this film should be focused on Superman, but including a few members of Batman's supporting cast will help expand on his character and what his role is in this new cinematic universe. In Superman: TAS, Commissioner Gordon and Detective Bullock are seen briefly while the Joker, Harley Quinn, and Alfred are all major characters in the episode. It would be unwise to include the Joker or Harley Quinn (who recently has been teased to appear on Arrow) in this movie, but the casting of Jeremy Irons as Alfred demonstrates that the filmmakers recognize the importance of the butler's supporting role. Filling the movie with Batman characters and villains would simply take away from Superman's primary role in the film, especially considering so many of Batman's supporting cast have appeared on-screen already.