Gorilla tourism is vital to Rwanda's economy: It's the third highest source of income.

I never felt totally, 100%, patriotically English... I'd seen a lot of the world by an early age - sort of spent a lot of time traveling around Lebanon and I'd seen Babylon, and Damascus, and all sorts of places in the Middle East by the time I was ten. Then we'd return to Ruslip in West London... Done a fair bit of traveling really.

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.

In the same way 'Lord of the Rings' was an interpretation of the book, 'The Hobbit' is being treated the same way. It will be faithfully represented with a fresh interpretation.

The difference between the big budget films I've done is the length of time. But in terms of the day-to-day, you're still going on to set, you're getting into character, and you're going and doing your job, so there's absolutely no difference. It's just the structure around it and the length of time. But in terms of budget and money, it doesn't really manifest itself.

I'm in the early stages of a film called 'Freezing Time' about Eadweard Muybridge, the Victorian photographer who was really the forefather of cinema. Digital animators still treat his images like the Bible. He was a very obsessed man.

You don't go - oh this is a motion capture role, I'm going to employ this method of acting. We don't have anything to hide behind when we're doing this.