The casting of any film is around 60% of the film, but it's also about the right casting insight. It's a bit like a house of cards, everyone has to match up in a certain way so the whole structure is grounded. So that's essential, and yes, it's about finding the right people and the right constellation around the lead character.

I never desired to really go to Hollywood and make films, and purely because I want my entire control, which I'm used to having.

And to be fair, most documentaries are half an hour too long, anyway. Let's not kid ourselves. Most movies are an hour too long. I will say that the internet has changed everything in terms of distribution and because of iTunes and other outlets like that, length is no longer something you really think about, in my opinion. It's irrelevant.

I consider it a great honour that my movie Drive inspired so many wonderful artists to come together and create one ultra-cool glam experience.

The conversations about a film are an example of success because then you know whatever you've done has resonated.

I sometimes play different kinds of music to see where the performers end up. I play one genre. Then something else when I do it again. It really helps.

Understanding one's own power is more interesting than someone being given something powerful.