What drew me to Batman in the first place was Bruce Wayne's story, and that he's a real character whose story begins in childhood. He's not a fully formed character like James Bond, so what we're doing is following the journey of this guy from a child who goes through this horrible experience of becoming this extraordinary character. That, for me, became a three-part story. And obviously the third part becomes the ending of the guy's story.

You never quite know what you're going to come back to and figure out how to make it work. You never quite know where that desire to finish something, or return to something in a fresh way, is going to come from. Every time I finished a film and went back and looked at it, I had changed as a person.

A hero can be anyone. Even a man doing something as simple and reassuring as putting a coat around a young boy's shoulders to let him know that the world hadn't ended.

Films are subjective - what you like, what you don't like. But the thing for me that is absolutely unifying is the idea that every time I go to the cinema and pay my money and sit down and watch a film go up on-screen, I want to feel that the people who made that film think it's the best movie in the world, that they poured everything into it and they really love it. Whether or not I agree with what they've done, I want that effort there - I want that sincerity. And when you don't feel it, that's the only time I feel like I'm wasting my time at the movies.

You always have to be very aware that the audience is extremely ruthless in its demand for newness, novelty and freshness.

Heist movies tend to be a bit superficial, glamorous, and fun. They don't tend to be emotionally engaging.

The problem with big films is they snowball very rapidly and you can never pull back. It's a pipeline that needs to be fed.