It's not so much that I want to direct but that I have to. When I write something it terrifies me that if I give it to someone else and it doesn't turn out as it could have done, I'd feel as if I'd orphaned my baby.

There's a part of bohemia I love. The lack of prejudice, the lack of aggression, I love the lack, for the most part, of competitiveness. It's more peaceful.

I wanted to dismantle the bollocks that there's a military structure to a gang, with a leader, second leader, the good looking one, first babe, second babe. It's far more arbitrary than that and their values shouldn't be romanticised. They aren't something you want to sign up to.

There's no such thing as an actor giving positive criticism to a director. The minute you say 'Don't you think it would look nicer', that director's going to hate your guts. Particularly if it's a good idea.

When things are really painful, I turn it into comedy.

Every film I've ever worked on, and that includes 'Braveheart' and 'Trainspotting,' I've always witnessed a director having a breakdown. Every director will have a day, without exception, where they just can't do it anymore, they don't know what to say to their cameraman, their cast. It's the sign of real, physical exhaustion.

I don't like the way some actors, when playing a nasty character, will try to grab hold of something good about them.