I don't read reviews any more, but I'm told by my publisher who gives me an account of what people have been writing and it's been a very split kind of response.

I think the act of talking about something - with a friend, or someone in your family, or someone you care about, and you're discussing something that you both admire - can often sharpen your thoughts about what you've read or seen and help you think more clearly about it.

The story is not in the words; it's in the struggle.

I write the paragraph, then I'm crossing out, changing words, trying to improve it. When it seems more or less OK, then I type it up because sometimes it's almost illegible, and if I wait, I might not be able to read it the next day.

I've dealt with numbers all my life, of course, and after a while you begin to feel that each number has a personality of its own. A twelve is very different from a thirteen, for example. Twelve is upright, conscientious, intelligent, whereas thirteen is a loner, a shady character who won't think twice about breaking the law to get what he wants. Eleven is tough, an outdoorsman who likes tramping through woods and scaling mountains; ten is rather simpleminded, a bland figure who always does what he's told; nine is deep and mystical, a Buddha of contemplation.

In the good mystery there is nothing wasted, no sentence, no word that is not significant.

I was extremely shy. And I simply didn't know how to go about it. It seemed a lot easier to write than to make films. All I needed was a pencil and a piece of paper, whereas filmmaking was something I had no access to.