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.

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.

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.

Part of battle has been getting Hollywood to recognize that comic books and superheroes are not synonymous. That's been a huge breakthrough, just in recent years really, and as a result of that recent breakthrough, we've had movies like 300, Road to Perdition, and A History of Violence, that very few people realize were based on comic books and graphic novels. It's very important to make that differentiation.

There's so much technology [in the Batman movies] that's unbelievable and seems unreal, so it's hard trying to get the audience to believe that it all exists. So we got Morgan Freeman to tell them that it's real. And that is why Christopher Nolan is a genius.

There are times when you need to step back and realize that movie studios today are not necessarily the same things that they were many years ago. Many movie studios are international conglomerates now. They own everything from theme parks to toy companies to T-shirt companies to video companies. There's a lot of different wheels to be greased.

When you are dealing with approximately two-plus hours every few years to do a story, you don't have the luxury of having excessive screen time to explore, in detail and in-depth, lots of other subsidiary or ancillary supporting characters.