When I read profiles of myself, I sometimes think: 'I have spent my whole life struggling to understand my motivations and impulses, and I've never quite sorted them out.'

I've never particularly liked travelling with large groups or being told where to go by somebody else. I prefer to find out for myself.

The people of Northern Ireland have sorted out my whole life.

When I'm travelling, I always take my little notebook and scribble things down as I watch them; I'm very much geared to everything that's happening. Whereas, the diary I keep is just about a record of a day I've spent. When I'm filming, I'm looking quite intensely at everything I see and trying to get my own eye on what we're going through.

I do have high standards. I look at everything I have done and think, 'Why wasn't that better?' Part of my motivation is from crippling self-doubt - I have got to prove myself wrong.

I think some of the best modern writing comes now from travellers.