Deborah Moggach

Once you start cycling, the city opens up for you. No longer are you fighting it, hot and frustrated; no longer are you at the mercy of bus drivers, roadworks, decisions made by others and over which you have no control. Believe me, once you've tasted this freedom, you're hooked.

I remember Detroit feeling really unsafe, feeling scared a lot. Our house was broken into, our car was stolen, we had to get a watchdog, we would get beat up in the street, I had my bike stolen. There was just a lot of real anarchy on the streets and sidewalks.

Sometimes you see films, not just science fiction films, where you get the sense that if the camera were to pan just to the left or the right, all of a sudden you'd be seeing light stands and crew standing around. But with 'Blade Runner,' the beauty of it is that it felt like a real, breathing city.

Whenever you have dynamic interactions between 300 million people and the American economy acting in really complex ways, that introduces a degree of almost chaos theory to the system, in a literal sense.