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.

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.

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.

It's great when you can bait and switch people - and I don't mean that in a negative way, I mean that in truth. If we were advertising this movie as a very serious indictment about the hunt for war criminals, and it's a very dark drama, it would probably get great reviews, but people would stay away from it because no one wants to be lectured.

I feel like you can have entertainment, and you can laugh, but during that period of time you can also think, and people should get upset. America is spending a lot of time and money pretending to be searching for people who we're not really searching for. That is enough to get someone angry.

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.

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.