Ridley Scott

I'm agnostic because I went through the usual process of parents insisting you go to church, and yet they didn't. So there's me, sitting in the chairs, thinking, 'Jeez, why am I here? I'd rather be playing tennis, seriously.'

The craziest place I've probably ever visited while filming would have to be Jordan. I did a small test shoot for a test movie. We arrived in Jordan, and we stayed in Amman for a night. Then we drove down for three hours into the middle of the Wadi Rum Desert, which is in the absolute middle of nowhere. It was insane.

Supplying fuel for a Mars expedition from the lunar surface is often suggested, but it's hard to make it pay off - Moon bases are expensive, and just buying more rockets to launch fuel from Earth is relatively cheap.