Gorillas are still wild creatures. That's made very clear when you observe them in nature. They charge and perform other displays that are terrifying by design. But they don't attack unless they feel threatened.

My sons have to learn that you take the rough with the smooth and they've seen a lot of smooth in the years that they've been around. They didn't see the early years. But both my mum and myself are actors and we constantly tell them it's not easy. But they understand that.

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.

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.

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.

In 'Tintin,' it's like a live-action role. You're living and breathing and making decisions for that character from page 1 to page 120, the whole emotional arc. In an animated movie, it's a committee decision. There are 50 people creating that character. You're responsible for a small part.

I'm quite contrary. If people agree on something, I tend to gravitate the other way by my nature. I don't like to be told what to do. I think it goes back to school. I like to do things I want to do and I really don't like doing what I don't want to do.