I think people go to the movies to be entertained, to have an experience, to disappear from their own reality for a couple of hours. If the film truly succeeds in everything the filmmaker sets out for it to be, then it's elevated to art. It's elevated to something special, because it gives people a visceral feeling of something they're experiencing as a collective group. You feel something and that's what turns it into what you may call art.

Bruce Willis. Pain in my ass, no problem about that. We just didn't get along. We got along off camera, but shooting we just didn't get along.

You'll see in the movie he constantly does that-he only drinks his tea a certain way, brings his own tea bags, the guy pours hot water, it's like a consistency throughout the film, but he never breaks his habits. I mean, to a point, where he has to.

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.

What I learned is, don't forget who you are, because that's what's going to make you a filmmaker.

It's part of the film-making business and also part of the creative process - putting all the pieces together to make a movie, so that they all line up. Sometimes it looks like you have a lot of projects lined up, but some of them are in different stages.

So it's hard to be an artist and be true to the reality of the world you want to create and also make it entertaining and successful financially.