I wanted to play roles which offered new ways of viewing black women and black people in general- and I have done that. And I have always, whether I needed to pay the rent or not, I've always turned down roles which I thought were stereotypical. And so when I look at my body of work in that respect, I am really happy. Because I feel my work does say something positive and that was what I always set out to do.

I just feel incredibly lucky. I went to drama school and about 28 of us graduated. I graduated from drama school in 2000, and I would say about two of us are working and able to make a living out of it. It is a tough profession. To have the kind of success I have had is really amazing, and I am incredibly grateful.

I like to believe that we all pray to the same god.

Mom's a writer, so I grew up reading scripts and I have a real respect for them and I know how much thought goes into creating a role, so I'm always interested to find out what was the thought process of the writer and how best can I convey it rather than trying to change it to suit myself.

Only do acting, if you don't want to do anything else. And know that it's a tough journey with a lot of rejection along the way. You have to have a lot of self-belief.

Without education, you really can't dream as a child.

I really enjoyed working with Daniel [Craig], because he's a brilliant actor at the top of his game. That gave me an opportunity to learn from the best, which is what you're always looking for as a performer in order to grow and get better at your craft. It was also great because he was so nice and incredibly supportive, because it really was an intimidating experience for me. He sort of held my hand and said, "We're in this together and we'll get through it together." And he did look after me.