Trivia: In his hideout, Joker has a lot of pictures scattered around the room. After he cuts out Vicki's picture and starts waltzing around the room, you can see the same picture that appears around the room of a smiling man with crazy dark hair. The guy in those photos looks a lot like Batman director Tim Burton. (00:54:00)
Trivia: When Bruce Wayne is sitting in the BatCave there is a map of the Axis Chemical neighbourhood and a map of Gotham City. The first map is actually that of Capitol Hill, a neighbourhood in Burnaby, British Columbia (see Hastings Street on the south edge of the map, and Dollarton Hiway on the other side of the water). The other map is of Vancouver International Airport and part of South Vancouver, also in British Columbia.
Trivia: The words "put this on right now" on the red mask used by Vicky at the museum were written by director Tim Burton.
Trivia: Michael Keaton had to wear a separate cowl with shorter ears for the scenes where he gets in and out of the Batmobile. The vehicle's sliding canopy feature had been designed based on his pre-costume measurements, and it was only once filming had started that the crew realised they hadn't thought to measure him again while in the batsuit, so they could account for how much extra height the ears added.