Obviously, when I came to do the movie I knew that I was going to have to take my clothes off so I might have worked a little bit harder to keep myself fit. But I think that's the irony of it - you see all these fit and healthy people, and I'm not making any comments on it, but everybody deep down is a f**k up somewhere.

It doesn't matter whether you have the happiest upbringing... the young Joe Scot had the most dysfunctional family there could be but it's still a family and it's a really good, strong family. But in spite of that he runs away from home. I relate to all of those things very directly. I hit 40 this year but I still think about being a teenager and hopefully I will for the rest of my life. They are important years.

The bad reviews get to me, believe me.

Shakespeare has way too many lines. My ideal theatre piece is about 40 minutes long with no interval.

I don't say: 'can't do that', 'won't do that'. I've never thought in that way about work.

I know in my life there's stuff that will come back because I haven't dealt with it, and it's the same with everybody.

I genuinely was just such a fan of the books. When I heard that this was on the cards, I've got to do this; I've got to get involved with this. I'm such a Philip Pullman fan and actually his philosophies, morals and the way he looks at the world. He does what he does brilliantly as a writer. He writes children's stories with major adult themes and major ideas about making the right choices.