We live our lives by the water and if you don't know how to swim in Australia, it's like not knowing how to cross a road. It's an incredible survival thing that you really must learn when you're a child.

We shot that in Morocco, and got out of the country at the beginning of July - and two months later came the attack on Twin Towers. The movie was then released in December, so that kind of atmosphere is not something that was unfamiliar to me.

It's usually very, very hard for me to pick up a script that was written and try and see myself as a part of that, especially when you're used to performing all your own material. It's OK with drama, I like being handed great material but I think with comedy it's far more personal and probably a lot harder for me to find a fit.

Having seen Justin's work on Bleak House, I knew that he'd be incredibly well prepared and interesting stylistically for this and that was definitely the case. It's very liberating for actors - and I can only speak for myself here - but he creates a very loose environment and he's a great collaborator.

I'm very much a bit of a ghost presence.

Just from my own experience, a lot of the comedians I used to work with were miserable in their actual lives. I think you need to be able to see a lot of negative in things in order to extract material, so there's probably something to that. A lot of the people I used to work with were very, very, very unfunny offstage, so that's a pretty common thing.

As an actor I've been attracted to the sort of films that I want to go and see. That tends to usually be drama-related.