I think that's important for all ages, to not be afraid of being an individual. I grew up on my own, as an only child, so early on I think I was quite capable of making decisions by myself and being an individual.

When people say to me: "Oh don't worry, if one door closes another one opens..." If one door closes for me, go through the window - I'm not interested in waiting around for people to give me opportunities. I try and make things happen and if I am given opportunities I take them and work harder.

I couldn't tell you the ratio, but probably for every job you see me do, there would be 20 rejections.

As a man - no longer a teenager that can play those really young roles, but as a man - I think I've only just got good in the last three or four years. I only watch my old films because, as someone who wasn't trained, that's how I look at my mistakes; I see something and I go, "Well, that's not good," and I learn from my mistakes. Same with the writing and same with the directing.

The BFI recently did a study of the British films that have the most people of color in them in the last 10 years, and in the top 10, three of the films were my films. I've always been a glass-is-half-full person. I've always gone, "If people aren't going to do it, I'm going to do it".

When I wrote 'Kidulthood,' I didn't even know there was going to be a 'Kidulthood.' I just wanted to test myself to see if I could write a script.

I think one thing my mother always instilled in me was a sense of individuality. Being an only child, I never thought I had to rely on anyone. I was never afraid to be alone and I was never afraid to be my own person. So when all my friends were like, "Let's smoke weed," I was like, "I'm not doing it." It wasn't because I was trying to be a rebel or because I didn't like it or I was anti-drugs. I just didn't do it because I didn't want to do it, and if I didn't want to do it, I wasn't doing it. That was it.