It took me forever, learning improvisation, because I had studied with Lee Strasberg - I dropped out of Chicago and went to his classes in New York for a couple of years, once or twice a week. What I didn't realize was I was learning directing because he wasn't all that good about acting, not for me.

Most great plays of the past lose their grip on immediacy; on application to our lives right now.

It's not a film-maker's job to explain his technique, but to tell his story the best way he can.

As a director, my job is, and always has been, divided into a number of things: dealing with the crew, the money and the studio, and the marketing and publicity. These are all different jobs that have to be learned and done as well as possible. The celebrity part rarely touches a director.

For the black author, and even the ex-slave narrator, creativity has often lain with the lie - forging an identity, 'making' one, but 'lying' about one, too.

My background is really being a writer's actor - that seems to be the way I work best, bringing out the best of writing. There's a whole range of acting skills, and some people can be astonishing with very poor material. That's not me; my skill is essentially unlocking the writing.

Here's something weird, though: I loved Jimi's music so much that I would never perform it for people. Throughout my teens and playing in various bands, I refused to play Hendrix songs. I know that sounds strange, but Jimi's music was so special to me that it was like works of art that shouldn't be touched or altered.

With film, it's all about the actor being able to feel the things that the character's feeling. It must do some strange things to your mind. Music I find much easier because you're being honest about where you are as a person.