I was fascinated by the world. I thought, "I just want to be a part of this world."

As a writer you see the big picture and how you can tell as one character, how your storyline is going to meet up with all these other storylines. And as an actor you're thinking of all the minutiae, all the very small details.

When you get out onto a glacier that's the size of Northern Ireland and it's so vast, and you're standing on top of it and you can see forever, it's so pure and clear that you can see for miles and miles and miles. You really do think, "Wow, there is a god!" You feel very humbled.

It's a real luxury to be able to develop with your character.

When you're working with really good actors, it raises your own game and you get better.

I think the benefit of being a writer is that I'm looking for the subtext on the page, because all good writing has subtext. And as a writer, you look at the big scope of things, the big story, rather than just your individual story line, because I think it's important to know what you're in and how you fit into it.

A lot of the time, because of the polar bears you're not allowed to go outside the door without your hunting rifle, even if it's to go to the local shop. The polar bears will come from nowhere, and you'll be eaten alive.