No wonder we have a lot of violence in Rio: the corrupt and violent policemen meet the violent criminals in the streets. What else is going to happen?

A film is a living thing. The screenplay is a guideline. You really need to have a good, sound script to know that you have a dramatic structure that's going to work thematically, and to know how one scene will got through another, and to get a sense of character.

No wonder we have a lot of violence in Rio: the corrupt and violent policemen meet the violent criminals in the streets. What else is going to happen?

How do you make RoboCop? How do you slowly bring a guy to be a robot? How do you actually take humanity out of someone and how do you program a brain, so to speak, and how does that affect an individual?

Listen, I like great actors. You can be a movie star without being a great actor - this has been proved several times - and I like my casts to have great actors. Acting is more important to me than being a star.

I come from a documentary background and my natural tendency, as a filmmaker, is to make a movie, if I have something to talk about. If it's not about anything that matters, I don't feel like doing it. I'm not against people who make movies just for fun, but I'm not one of those guys. I just want to provoke thinking and debating about certain issues.

Measurements, observations, descriptions can only be considered scientific when they are independently confirmed by other people.