I thought one way to try to hold on to the power was to write the script myself. That way, I could say to filmmakers, "I'm not asking you to hire me unseen. I'm just saying, 'Here's my script. Can we work together?'" So that worked out well.

The idea was to focus on the primal drama of parenthood: the way from moment to moment you swing from comforter to tormentor, just as kids simultaneously light up our lives and drive us nuts. I was trying to capture that strange, bipolar quality of parenthood. For all that being a parent is normal statistically, it's not normal psychologically. It produces some of the most extreme emotions you'll ever have.

Change for your own sake, if you must, not for what you imagine another will ask of you.

I read a lot of social history. If I'm in an art gallery and a picture intrigues me, I immediately write down the title and I google it. I do a lot of googling and looking out for good stories. I can almost smell them sometimes.

I am clumsy, a late and nervous driver, and despise all sports except a little gentle dancing or yoga.

With my first book, I was hired to write a draft of the script. I was so young and less confident. They put me through seven or eight drafts and it was just getting worse and worse, and then the film was never made.

The world is always changing brightness and hotness and soundness, I never know how it's going to be the next minute.