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.

It takes a very strong brain to resist the absolutes, the myths that the media and the politicians peddle - the idea that if you are too kind, where does it all end? That not to help someone is somehow a good idea.

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

I love acting. It's the one job I know of where you can go in, go through complete catharsis - emotionally, physically sometimes and mentally - and at the end of the day say, 'See you in the pub, guys.

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.

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 hate it when something is set in 1967 and every piece of furniture was made in 1967. No! If it's set in 1967, people have furniture given to them by their grandmother, which she bought in 1932!