You can't tell someone they are wrong about their own life.

Even though one of them is about an Edinburgh junkie and ones a little boy of eight in Manchester, you want them to always portray their world in such a vivid way that the audience can disappear inside the story.

I like action movies, even though I think action movies are kind of derided now. But there is something extraordinary about action movies, which is absolutely linked to the invention of cinema and what cinema is and why we love it.

I say to first time filmmakers that when they're asked, they should go to America as you're far more likely to get a chance.

When you have children your own hypocrisy becomes more apparent because you're telling them how to behave, and you're not behaving like that yourself. So it obliges one to really go in and try to look at why there is a huge gulf between how one knows one wants to behave and how one actually does behave.

I'm always after putting people in extreme circumstances. I'm always after not knowing what I'm doing in those extreme circumstances.

The perfect equation is form equals content. The style of the film reflects the story, and that's what you're always aiming for. You're not always necessarily successful at it, but that's the ambition that you're trying to do.