There have been so many interpretations of both Batman and the Joker in the comic books themselves over the decades, from one extreme to the next, and in the media, from one extreme to the next.

In a sense, comic books are frozen movies. If you look at a comic book, you are generally seeing the storyboard for a film. The great advantage of comic books, over the years, has been that, if they are frozen movies, they are not limited by budget. They are only limited by imagination.

I think every filmmaker makes different choices. I remember in the early days, in some of the early comic book movies, certain white dissolves were used that would try to emulate the look and feel of comic book panel borders. Sometimes they would frame shots in panels or circles that gave it a real comic book feel.

If you talk about genres - I don't care if you're talking about war, Westerns, science fiction, horror, fantasy, humor, romance - anything you can find, strolling the aisles of a Borders or a Barnes & Noble, I can bring you many comic books representing each genre.

If you look at all the comic book films that have come since then, in terms of tone, in terms of look, even in terms of Danny Elfman's music for Batman, so many that followed have been inspired by that, specifically. It had a cultural impact worldwide.

I think it's one thing if you are turning out dozens or even a hundred stories a year, you've got to have a great supporting cast behind you. Superman had a family that developed, and it's only natural that Batman has a family of sorts that developed. I think it's a great way to keep the comics interesting and varied, to appeal to different segments of an audience, to bring new perspectives to it.

Doors will slam in your face. You must pick yourself up, dust yourself off, and knock again; it's the only way to achieve your goals in life.