My agent told me they were casting for the voice of Gollum. I hadnt read The Lord of the Rings, but I read the script and realized what an amazing role it was. I developed a voice for the audition tape, then met Peter Jackson and Fran Walsh at the auditions and fell in love with them both.

It's a really unique situation where you just - you make independent films or you make big blockbuster movies, but it's very rare when all of those ingredients come together, and you can really tell a story that you care about with a character you absolutely love with the people you love making movies with.

After 'Kong,' my knuckles have never recovered because I had to wear very heavy weights on my forearms and around my hips and ankles to get the sense of size and scale of the movement of the character You are telling your body that you are these things and that you're feeling these thoughts and that you're experiencing these experiences.

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.

Performance capture is a technology, not a genre; it's just another way of recording an actor's performance.

On lower budget things you're still working collaboratively, but the investment and your level of creative importance is higher on something like this.

A lot of actors on film sets... very often they're not paying attention to the physical world around them. I think through studying art, I've always had that awareness and that's something that I've wanted to bring in to go beyond acting... As a form of expression, they are intrinsically linked.