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.

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.

Life is much weirder than fiction; nothing's more absurd.

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.

Watching people just look out for themselves, I think, is extremely interesting. It goes right back to something like 'The Beggar's Opera' - the underbelly of society, how it operates, and how that reflects their so-called betters.

Filmmaking is something I have to do. It's not something I particularly want to do.

A script is utterly useless in and of itself; it's only of any worth the minute your actors, your designers, your directors come into being.