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 In 2007, he guest-starred on the hit TV series "Numb3rs" in the episode "Trust Metric", portraying torture expert Mason Lancer. That same year, he released a CD, proceeds of which went to his charity interests. In 2008, Kilmer starred alongside Stephen Dorff in the Sony and Stage 6 film "Felon". The film was given only a limited theatrical release in New York and Los Angeles in 2008, but it developed into a success secondary to positive word of mouth. Kilmer was the voice of the car KITT for the 2008 "Knight Rider" TV pilot film and the following television series.