What film is in a genre that you don’t generally care for, but is the exception for you, because it is so good?

Personally I don’t generally like superhero movies. However Batman (1989) is the exception to this. It is a mixture of Michael Keaton playing the character in a reasonably measured way (no overly gruff voices or amping up the angst), the gothic background and most of all Jack Nicholson (I’m of the firm belief that he is the most consequential actor of the second half of the 20th century) managing to make the bad guy carry the film.