I really feel that actors should really know who they are as characters; they should really study their lines; they should be prepared; but once they come to set, for me the most exciting way to shoot a scene is to really find it, really kind of grind your way through it, until you feel like you have something that you can put together.

I think that almost every scene was an exploration - it was never going to be just what’s on the page. So I know I was very lucky - we all were - to work with a cast of this caliber. These are extremely experienced and intelligent actors, who are also deeply emotional and - as you say - are also engaged in the world.

I think everybody came into it with the understanding that they would go through an experience that is literally not by the book, that is not executing the script and then going home, but living and breathing these characters and being in the moment with each other, and improvising and creating a lot of present-tense intensity between characters.

But the reality is that the police serve a certain function, to maintain a certain status quo, and that's one of the things that the movie is about, because it basically gives you three options for looking at the police, as symbolized by Dave Brown.

It's not a big secret that what's lacking and what's wrong in our society starts with education. It starts with the way people are brought up, and what is put into their heads and put into their minds as engaged citizens.

If you look at it that way, then you start thinking about the basic things, which are jobs not jails, and education not incarceration.

There's no solutions to prevent corruption because it's the same thing as putting soldiers in an occupation in a foreign territory - there's too much that's gonna go wrong. There's too much human behavior that's going to get in the way. So you're gonna have to start thinking about it in a different direction, and the different direction is: what is wrong with society?