Batman questions and answers

Batman (1989) - 3 questions

Directed by Tim Burton, starring Billy Dee Williams, Jack Nicholson, Kim Basinger, Michael Gough, Michael Keaton

The "questions" section is for any random questions that occurred to you while watching this film, or anything you didn't entirely understand, and which Google or the IMDb can't help with. Submit them as a question, and hopefully someone will answer (the bold comments in brackets) - check back regularly. If the answer is wrong, or missing information, please use the "clarify answer" option. Don't feel limited - want to know what music played in a certain scene? Whether this was the first film to use a certain effect? Here's the place to ask!

Is it true that Prince has a cameo? [Prince wrote the music; he has no cameo in the movie.] Answered by Zwn Annwn

When the Joker and his henchmen are destroying the art in the museum, he tells them to spare one picture because he likes it. What painting is this, or at least what is it a picture of? [It is "Figure with Meat" by Francis Bacon.] Answered by wizard_of_gore

Could anybody explain me how did they turn Jack Nicholson into the Joker? I know it's just make up, but how did they made that Joker smile? [His smile is natural but the depressions in his face were made using fake skin and makeup.]