Not harder than it should be, no. We're about the business, we're about the work. It's all about the work, always. We have fun and laugh and there're days that are more intense than others, but we're there to make it better. He's always going to try and make it better, I'm always going to try and make it better. So you accept anything, you accept whatever it takes to get it up on the screen and make it worthy.

I started studying mythology, just on my own. Joseph Campbell, mysticism.

We're very good friends, we have a very honest relationship. He keeps me honest, I keep him honest. He's an incredible actor and when you have an actor like Denzel action becomes drama.

You could call it that [urban Western], I guess, you could certainly call it that. A lot of these types of films are, really, if you get down to the core most suspense thrillers in this genre, the Western is sort of the birth of it all.

Movies are so hard to get made - every step of the way of making a movie has obstacles. If you don't have that passion, if you don't have that vision, if you don't believe it's a piece of art worth making, then you probably won't get it made - you won't have a chance for it to be something special.

I've become friends with Michael Mann and Oliver Stone; I've seen those guys work and that was great to see.

I became a director just for the love of movies, because of the power of cinema.