David Mamet was great to work with. He was everything that I thought he would be as a director. He's incredibly articulate, an easy collaborator. Extraordinarily knowledgeable about film and writing.

Working in this industry, I do feel that science and creativity turned out to be a very useful combination for me.

I think fear is a very healthy motivator.

Once you click into a character, to a certain degree, you can do a lot else. You can do other stuff, then come back and click right into the character. It's sort of funny that way, the way the mind works. Once it's there, it's sort of there. For the stage, for example, all through the day, you're not onstage. You're living your life, la-la-la, then the lights go down, then boom! All of a sudden, you're in this thing. There's a kind of reflex muscle trigger that happens, and all of a sudden you're back into the role. It's just getting there in the first place that's tricky.

Depending on what your interest in theater is, I always recommend working on plays. It's a great way to be introduced to the field, and also a great way to be seen by agents and representation. I'm also a great advocate for studying acting at a drama school or a college.

Steve MCQueen created an entire family to tell one man's tale and I am delighted that so many of this family have also been recognised today. I am hugely grateful to the Academy for this great honour, and, of course, to Solomon Northup for sharing his story through his breathtaking book.

My father, Arinze Ejiofor , was a musician and a doctor. Nobody's ever asked me about that combination and what growing up in that environment was like.