Movie review score
5
After Burton was hired as director in 1986, Steve Englehart and Julie Hickson wrote film treatments before Sam Hamm wrote the first screenplay. Batman was not greenlit until after the success of Burton's Beetlejuice (1988). Numerous A-list actors were considered for the role of Batman before Keaton was cast. Keaton's casting caused a controversy since, by 1988, he had become typecast as a comedic actor and many observers doubted he could portray a serious role. Nicholson accepted the role of the Joker under strict conditions that dictated a high salary, a portion of the box office profits and his shooting schedule. The tone and themes of the film were influenced in part by Alan Moore's The Killing Joke and Frank Miller's The Dark Knight Returns.