It's interesting going between small parts and then bigger roles where you carry the film. If the writing is good, and if the people involved have integrity, then you'll do it, even if it's only five minutes on screen.

So, to get to play somebody who was insisting on it, in spite of all the evidence was very liberating and exciting. It went quite deep. I suppose I reference a kindness and humility that I would have seen in my parents' generation, a little bit more than now.

I'm aware now over the last 5 or 10 years that when you do an accent, you really have to kind of get down to the nitty gritty and go into the phonetics of it, if necessary. Find out not just the sounds but the rhythms and the music - or lack thereof - in a particular accent.

It's interesting going between small parts and then bigger roles where you carry the film. If the writing is good, and if the people involved have integrity, then you'll do it, even if it's only five minutes on screen.

My grandfather played a mandolin, so I got my hands on that. Then on down to a banjo, and I found I couldn't play any kind of soft or mournful music with that so I took up the fiddle in my late 20s or early 30s - and that was far too late. But it keeps me off the streets. It has been a love of mine since I was 17 maybe.

Once we start shooting, it's in there. You're trying to get into a place where you rise to the work, rather than make it manageable or make it work for you.

We lost faith in authority in the '50s, up to a point, and we spawned a lot of anti-heroes in movies, which were refreshing and open. But at this point, with the distrust that's there and the disillusionment with leadership that is so acute, we need some kind of a focus on taking the irony out and taking the anti-hero element away.