Batman & Robin (film) to keep their partnership together. It is also to date the only live-action film appearance of Batgirl, who helps the title characters fight the villains. Warner Bros. fast-tracked development for "Batman & Robin" following the box office success of the previous film, "Batman Forever". Schumacher and Goldsman conceived the storyline during pre-production on "A Time to Kill", while Val Kilmer decided not to reprise the role over scheduling conflicts with "The Saint". Schumacher had a strong interest in casting William Baldwin in Kilmer's place before George Clooney won the role. Principal photography began in September 1996 and finished in January
Val Kilmer He replaced Will Arnett, who had to step down from the role due to contractual conflict with General Motors. In keeping with tradition established by the original "Knight Rider" series and original KITT actor William Daniels, Kilmer was uncredited for the role on-screen. He next starred alongside Nicolas Cage in the Werner Herzog film "", and alongside Curtis "50 Cent" Jackson in "Streets of Blood". Both were released in 2009. He appeared as the main antagonist "Mongoose" in a live TV series adaptation of the comic/video game of "XIII" on NBC in 2009. In 2010 Kilmer starred in the horror