Performance capture is a tool that young actors will need in the next 10, 20 years. It's on the increase, as you say. It's not going away.

When you start to do research into gorillas or any kind of apes, if you're going to play them, that's one of the biggest misconceptions. And when I did Kong, you're not doing gorilla movements, you're not doing ape movements, you're looking for a personality. It's like saying okay I'm going to do human movements.

It's a different rhythm than most movies. For a lot of the actors, you're 12,000 miles away from home. It becomes a way of life - getting up at five in the morning, shooting every day, day in day out, for 270 days. The new cast playing the dwarves were carrying incredibly heavy weights in their suits, they sat through hours of make-up every day. So it's quite challenging from a stamina point of view.

That's why I ended up going to Lancaster University, because they had a visual arts course, and in the first year it was like a broad visual arts course in sculpture, painting, graphics - all of that.

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.

I was thinking about that. I was thinking, this is like our Boyhood; this is like our getting together over 12 years to make - this our Apehood! I mean, this is it! For me, the relationships, all of those things, over such a long period of time now with actors, but also seeing the characters grow, develop, and change, and go through different situations.

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.