I spent a lot of time on Diane Arbus film, not only writing it, but running around talking through various production issues. All this crud, and then it didn't happen. There's a lot of time-wasting stuff that happens in life with movies.

Starting writing is stressful and scary and hard, but also, it's just like going to the gym. You're just stiff and weird, and you can't do it as well.

That's what all these studios do: They recruit people who've seen certain films. It's this weird, fake science-y thing the studios call a "tool." That's a very scary process, because it can be used in odd ways. But then there's focus groups and stuff like that. I was so nauseous and terrified, and then you get the cards: very good, good, recommend.

Obviously, once you're finished, you're like, "Okay, I have to make this a movie now, and I need people - bodies to play these parts, and actors to bring this thing beyond a script." But when I was writing it, I wasn't thinking of actors; I was really thinking about creating three-dimensional characters.

I did watching my films with an audience at the beginning when we went to Sundance and we screened The Savages there. I watched it, and I was just praying to God it worked, because we weren't even finished. I was just hoping it worked, so half of it was just, "Phew."

I had the experience of having my grandmother in a nursing home at the end of her life, and had dementia set in with my father. He was in a nursing home with dementia at the end of his life, but it happened for me personally 10 years ago. My father was much older than my mother, so I experienced it as a pretty young person. People's parents die at various ages, but my father died of mortality. He died of being an old person. Illness and stuff happened, but essentially, he was old and he was going to die.

Ideally, I'd prefer never having to be in a test-screening environment. Some famous director said "The group is smart, the individuals are stupid," about the experience of a test screening.