I love, first of all, reading and discovering what the common perception is and then trying to figure out... well, how does your life cross over into that character, or what's an angle on this that might challenge the status quo? It's just a great journey as well as an education. You're constantly being educated - it's like I'm back at school and making up for lost time.

I wanted to be a painter, really, when I was growing up as a kid. It was one thing that really took a grip on me.

When you have children, you realize that at the end it's all about passing on, about handing down. The process of letting go, not attachment, but appreciating the beauty and value in the change, the transformation.

Second films are, you know, like 'difficult second albums', so it's a tricky position to be in but I think he's made a highly accomplished film.

In a personal way, to do with family and the father-son relationship, in a kind of artistic way with regard to him being an art student. I also studied the visual arts at Lancaster University. I then decided to become an actor as he was becoming a musician. And then as an actor/performer, we have similar sort of interests - music hall and that whole world. So, there's a lot that I felt connected with.

Basically we're puppeteers and if you're there and you're in the character, the puppet is going to look good. It's going to breath life and I think once they find out how to trust this system, you just forget about it and just perform, then it's just second nature, it just becomes easy.

Not a day goes by where I'm not reminded of Gollum by some person in the street who asks me to do his voice or wants to talk to me about him. But because 'The Hobbit' has been talked about as a project for many years, I knew that at some point I'd have to reengage with him.