But the first time I had to stand up and sing with them was when we did the pre-record for the movie and it was that moment where I sort of said to myself: "S**t, now I actually have to do this and I have to stand up and do my stars in your eyes moment!" Wake Up and Make Love With Me was the first song and I thought: "Here we are with Chaz and all the boys..."

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.

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.

For film and games, there is now a fantastic method of actors portraying characters which don't necessarily look like themselves. And yet you've still got the heart and soul of the performance.

When I was in theater I was forever trying to inhabit a space which puts yourself under the microscope as an actor and your personality and your take on life, but actually through another portal of a character.

I stayed in Baghdad every summer until I was 14. My dad's sister is still there, but many of my relatives have managed to get out. People forget that there are still people there who are not radicalized in any particular direction, trying to live normal lives in a very difficult situation.

I understand why people went nuts for 'The Artist.' We use words so much, it's nice to be able to explore a different way of communication, to be able to express silently what someone - or something - is thinking or feeling.