Acting is a sort of pressure cooker that allows the fizz to come out the top. God knows what I'd be like if I didn't have that.

People think, 'Oh, well how can 'The Hobbit,' which is one book, become three films?' But you can take one line from an appendice and it turns into a whole sequence.

I think even back as far as 'Lord of the Rings,' there was always the chance that 'The Hobbit' would be made, even way back then. Of course at that point, Peter Jackson didn't probably think at that point that he'd be directing it.

When I played Gollum in 'Lord of the Rings,' if I was climbing up the side of a mountain, which I physically did, you know, I was on every single occasion swimming through streams, all of that, that wasn't captured. That was filmed on 35 millimeter, and for certain of those shots, it was rotoscoped and painted over.

My dad was working abroad, in Iraq, and he was a doctor. We used to go and visit him, in Baghdad, off and on. For the first ten years of my life, we used to go backwards and forwards to Baghdad, so that was quite amazing. I spent a lot of time traveling around the Middle East.

Working from home is so, so hard because I want to be present for them and yet there's so much to do work-wise. That's the biggest challenge for me.

I'm working from home a lot. That's very unusual because I'm away a lot, sometimes working on the other side of the world for long periods of time. So, it's hard to manage in the sense that I want to be the best dad I can be but it's almost harder when you have your kids outside the door.