Sports also teaches you that it's about the team, and the better your teammates are, the better they make you.

People often ask me if I feel discriminated against as a black female director. I don't. I'm actually offered a ton of stuff. But I only want to direct what I write. And I prefer to focus on black female characters. What's most important to me is to put characters up onscreen who are not perfect, but who are human and flawed.

My parents are amazing. When I said I wanted to go into film, they didn't understand it, but they were incredibly supportive. But growing up, I absolutely did have that feeling of, "Wow, somebody just gave me up." That was infused in The Secret Life of Bees too - the protagonist wanting unconditional love from her dead but much-imagined mother.

My parents put me in sports when I was 5 years old, and they put my sisters in sports. So that's what I grew up with, that mentality: "It's OK to want to be the best. Aggression is good." You have to have that little walk on the court or down the track. I love to put that into my female characters, because I don't think enough girls are taught that at a young age.

I'm very shy. But as a director and especially a female director, absolutely: How I used to walk on the court is how I walk on set. And I have to - I mean, I'm controlling 150, 200 people, and everything is on me.

What we were most hoping to achieve with Shots Fired: empathy for all of the characters and conversations about our criminal justice system, which is broken on every level, from the street all the way up to the highest level of government.

That's why Serena Williams is such a hero for me, because she's got such incredible swagger, and it's earned, and she can teach us that it is a good thing. The fact that she has been denigrated and called cocky - I mean, she's the best in the world! I hope my work can inspire other women to have that swagger and believe that they can have it all.