When you have children, you realize that at the end it's all about passing on, about handing down. The process of letting go, not attachment, but appreciating the beauty and value in the change, the transformation.

I'd already started directing short films when we were doing 'Lord of the Rings,' then videogame projects.

Caesar [from the Rise of the Planet of the Apes] was brought up with human beings and because of the drug he had pretty much grown up with his whole life, he felt like an outsider, he felt trapped in an ape's body but he didn't really feel like an ape and that was my way into the character. So he's always had this duality playing him from an infant all the way to now as a fifty-five year old ape.

There is always that potential in the same way - Roddy McDowall ended up playing Cornelius to Caesar [in the Planet of the Apes]. Two different characters. That's the joy of the craft. Bring it on I say.

My first job when I got my equity card was acting in 14 plays back-to-back. Playing that many roles, you look for ways of differentiating the characters physically, which goes hand in hand with understanding them psychologically.

I've always thought of acting as a tool to change society. I watch a lot of actors and I see panic in their eyes because they don't know why they act and I know why I act. Whether I'm a good or a bad actor, I know why I do it.

Animators do amazing working translating and interpolating the characters [in the Planet of the apes], the facial performances. What we're creating on set - if you don't get it on the day, in the moment, on set, in front of the camera, with the director and the actors. The emotional content of the scene and the acting choices.