Keira Knightley

But acting is very much a profession that is you're hot one moment and not the next - and that is totally cool. I think that's what I find most fascinating and most exciting about it - is that it can be gone in a puff of smoke.

All through my life what I've loved doing is watching movies. I love the escapism of film, I love stories. So it is incredible to be able to be in them as much as I am, to see them from the first stitch in a costume to the end product.

It is only when you watch the dense mass of thousands of ants, crowded together around the Hill, blackening the ground, that you begin to see the whole beast, and now you observe it thinking, planning, calculating. It is an intelligence, a kind of live computer, with crawling bits for its wits.