I'm not making a movie about the real people. I'm making a movie about what they did, and what happened to them. But I will create characters so that I can have the freedom to make them say and do what I want. The real-life journalists were fine with that.

For me, when I see movies where I kind of know who the characters are and what the situation is, I get bored. To me, it's, "How do I tell a story that will keep the audience engaged?" A great story does that: it's not exactly what you expect.

Same thing for the bad guy. People were really after this guy Radovan Karadicz. But I came up with a combination of several people, who then became The Fox. That's who Simon Hunt and Duck are after. I did that so I could have freedom with what The Fox said and did, so that I didn't have to be stuck. Certain things I wanted to stay to the truth. Certain things I changed, and certain things are the facts.

So I like switching it up. I like that people are laughing but they don't even know if they should be laughing. I think that's interesting. I think it makes for a fun movie. And you're far more likely to be able to actually get something into someone's head if they don't quite see it coming, as opposed to delivering a very serious examination.

As a writer, it's fun to free yourself enough to tap into some darker elements of your personality that sometimes I don't even know exist. It doesn't feel like work.

I think people are a mixture of everything. I like desperate characters because they do things that most of us normally wouldn't do. If a character is a scoundrel or a liar you think you know them, but then I can bring some emotion to them and they become much fuller than you ever imagined. So what I try to do is have a story where you don't quite know where it's going, and characters who you don't quite know where they're going.

If you have that group of people who are both nice and also creative, then you have surprises like a room with monkeys in them. That has taken a very good scene and just made it a great scene. I want my movies to be visually interesting and to have a lot of energy and be colorful and full of life.