I think a lot of people go into filmmaking thinking, "How can I make a career?" And so when they make their first film, they make it thinking, "Well, this'll be the one that gets me to the place where I can make the second film the way I want to make it, and that'll get me to the place where I can make $100 million on the third film." And I thought, "Well, if I put sustainability at the bottom of my priority list, then what opportunities is that going to free me up to pursue?" And that's what I've always done.

There are two aspects to making movies: One is the feeling of wanting to push myself into stuff that I don't know how to do. Then there's the other impulse to try and earn a living. I want to be careful about not confusing those too much - not that those things can't have a healthy overlap. Plenty of people start out making work that isn't terribly commercial, and then make work that's more commercial but still good. You just want to watch out for that thing where you tell yourself that you're doing your best work when you're not.

I don't want to take shots at professional actors, because obviously the great ones are great. But I do think that given the kind of stories I've been telling in my films, it's hard for me to imagine how professional actors would have done better. And it's easy for me to imagine how they would have done worse. Because I think a lot of what an actor is trained to do and a lot of what an actor's instincts point toward is clarification, is always making it clear what's happening in the story, how the character fits into the scene, what the character wants.

Sometimes you meet someone, and they seem great, they seem exactly what you're thinking of for the role, and then you put a camera on them, and they freeze. And other people come to life with the camera on them. I haven't discovered any reliable predictor for that; I think you just have to try it and see what happens. And, you know, sometimes the people who freeze, if you find the right magic word to say to them, you can unlock them.

There's nothing sillier than fake rough edges, like the handheld camera you sometimes see on "NYPD Blue," shaking and jittering around, unmotivated, way more than any actual documentary camera would.

On one hand, I kind of feel like I have unlimited options right now, and obviously that's not technically true, but when you're at this place where you're just kind of dreaming up stuff, your imagination is your limit. That's where I'm at, which is great, but ultimately I think you have to make these decisions to close off some options to yourself. I think things only get done when you say, "This is the one thing I'm doing," and you kind of kill the other ones in the meantime. So I haven't done that yet, I've got to figure that out.

I think a lot of people go into filmmaking thinking, "How can I make a career?" And so when they make their first film, they make it thinking, "Well, this'll be the one that gets me to the place where I can make the second film the way I want to make it, and that'll get me to the place where I can make $100 million on the third film." And I thought, "Well, if I put sustainability at the bottom of my priority list, then what opportunities is that going to free me up to pursue?" And that's what I've always done.