That's one thing I find about having children - it does unlock a door that separates you from other women who've had children.

I'm really interested in the minutiae of different tones and what that explains - how people's backgrounds are reflected in minute details of how they interact. It's true that I'm hypersensitive to all that. Writing is acting in the sense that you're imagining and inhabiting another. In the book I was trying to get at the root of what true acting is.

I had a lot of great lakes of ignorance that I was up against, I would write what I knew in almost like islands that were rising up out of the oceans. Then I would take time off and read, sometimes for months, then I would write more of what I knew, and saw what I could see, as much as the story as I could see. And then at a certain point I had to write out what I thought was the plot because it was so hard to keep it all together in my head. And then I started to write in a more linear way.

That's one thing I find about having children - it does unlock a door that separates you from other women who've had children.

When I left university I was sure that I was going to be a painter. Then I had a crisis, a revelation. I saw Dolce Vita and my mind was blown by it, by the synthesis. I realised I wanted to be a filmmaker and started making films. I was writing screenplays and couldn't get money because my work was so uncommercial. I got married and started writing fiction. What was wonderful is that it gave me my freedom because no-one can tell me I can't work. Novels have become equally important to me as films. I consider myself a storyteller and passionately engaged in both of those disciplines.

As if there's a world that exists that you're semi-privy to yet can't quite penetrate - that's how it feels when you're starting a book.

At best, I think of a director as a magnet. You get all the metal fillings in all the individual actors and crew, and get those filings moving toward your magnetic direction.