The joy of a road movie is its very simple narrative nature, which is that you know you're going to go through different places and you're going to meet new people. At the same time, you have to not make it feel too obvious and too crudely episodic.

All I know is that I operate by going out to each of them and trying to learn the territory in which they operate. My language to each of them has to suit their brain.

When I drive through a field, I want to see green grass sometimes, and I don't want to see black and white.

For me, certain shots or scenes are keys in the movie.

The moment you have kids, you are prey to judgment, but you also become a judge. You find yourself going, "Can you believe what she did with such-and-such?" at school.

Politicizing of kids starts with pregnancy, of course. You shouldn't be drinking wine. You can't be smoking, either. The poor woman is poked and prodded and touched and obsessed over.

You just never know when movies are going to take off or not. The lucky thing about this was that it didn't cost a lot of money, and therefore there wasn't loads of pressure on me.