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.

How can I make a movie about the violence of the police if the police aren't going to let me film it?

The way that I sort of direct the writers is, let's do the best story we can. Let's not worry about production issues. 'How much will that cost? How are we going to shoot that?' Let's not set up those constraints on the writing. I don't think it helps the project to work like that.

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.

Well, I'm not that popular with the politicians, I have to say.

A lot of jobs today are being automated; what happens when you extend that concept to very important areas of society like law enforcement? What happens if you start controlling the behavior of criminals or people in general with software-running machines? Those questions, they look like they're sci-fi but they're not.

I love the sharpness and political tone of RoboCop and I think that such a film is now urgently needed.