Burton originally did not want to direct another Batman film because of his mixed emotions toward the previous film in 1989. Warner Bros. developed a script with writer Sam Hamm which had the Penguin and Catwoman going after hidden treasure. Burton agreed to return after he granted him more creative control and replaced Hamm with Daniel Waters. Wesley Strick did an uncredited rewrite, removing the characters of Harvey Dent and Robin and rewriting the climax. Annette Bening was originally cast as Catwoman but was replaced with Pfeiffer following her pregnancy. Filming for Batman Returns started in June 1991 at Warner Bros. Studios in Burbank, California.