My compulsion to always be working has become less strong and my current business is purely down to this enormous alimony. If I wasn't doing this I'd be making documentaries about wildlife and other subjects that interest me.

The best films of any kind narrative or documentary provoke questions.

A saboteur in the house of art and a comedienne in the house of art theory Lawler has spent three decades documenting the secret life of art. Functioning as a kind of one-woman CSI unit she has photographed pictures and objects in collectors' homes in galleries on the walls of auction houses and off the walls in museum storage.

But one of the amazing things about documentary is that you can remake it every time you make one. There is no rule about how a documentary film has to be made.

I remember when I took Quentin Tarantino with me to a very private screening of the documentary 'Roman Polanski: Wanted and Desired ' which shows some of the legal irregularities of his case. I was involved by the film and it was an amazing experience to see people weep at the end of it.

The amazing fact is that America is founded on a document. It's a work in progress. It can be tested by each generation.

I think if you put a camera in anyone's life and document it daily from the age of 21 to 27 there are going to be things that aren't always pretty.