35mm film isn't ticking away so it's subconscious - performances are allowed to breathe in a much more real way I think.

Yeah, I mean, climbing's always been a massive hobby of mine up until, kind of, recent times when I've had family, but no, it's been a driving passion in my life and, uh, I've always wanted to climb the Matterhorn. It was the mountain that, sort of, inspired me to climb, as a youngster. So, it was great to be able to get to do it.

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.

Working with people you adore and love. There's just a sense, all the way through all of the movies [Planet of Apes], that you're very rarely in a position where you have great material that you're passionate about and a big audience who love it, and the detail and nuance, and the exquisiteness of the fantastic actors and director with great writing.

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.

We've never had nannies. We've had great grandparents, great support from family, and the kids have been on every set: they've seen me play Gollum, King Kong, Captain Haddock, the lot. They totally get it, and they want to go into the business. Ruby, my daughter, is very keen to become an actress.

(The) process of acting is no different to conventional screen acting, in that it's providing a perfect interface between the director and the performer. So there's no sort of long way around a viral committee of animators.