I was sometimes called 'coconut' when I was at school.

I never, ever do a film and just kind of move on. I think of them as children of mine, and you don't give birth to a baby and just leave it on someone else's doorstep. You see it all the way through college.

I truly believe that one of the things that has been lacking in the USA is a spirit of repentance about the injustices of slavery and the injustices of segregation and racism generally.

As you know, Sunday at 11 o'clock is the most segregated hour in America. You have black churches; you have white churches; you have Hispanic churches. It's not really reflective of the world we live in, by and large, in America.

I know I had my equivalents in Adrian Lester and Lenny James when I was at drama school. I remember David Harewood doing 'Othello' at the National, and Adrian Lester having done Cheek by Jowl's famous 'As You Like It and Company' at the Donmar. Not necessarily performances I saw, but just the fact they happened was massively encouraging.

I think it's vital to have something outside your acting to keep you rooted in the real world, and help you fill the vacuum. If you have nothing else, it can be unhealthy. For me being a Christian has been invaluable: it simply means acting isn't the centre of my life.

One of the things I have an allergic reaction to playing, especially as a black actor, is the mandatory kind of best friend/cop/detective type. You will never see me in that movie.