To be teammates in Formula One actually means you are first rivals, not really mates.

I'm a sport fan. So, I have always watched everything, and I used to watch racing. Formula One was always on. The genius about it is that it's on at lunchtime on a Sunday.

I wanted to make a film that wouldn't just appeal to Formula One fans. That's what the great sports documentaries do - 'Hoop Dreams,' 'When We Were Kings' - they're human dramas first, sport second, if at all.

There are no drivers like Formula One drivers. They are engineers, in a way. They are driving manual cars one-handed at 200 miles per hour around streets in Monaco. These cars use the ultimate in technology.

When I was given the opportunity to direct 'Senna,' I decided the film had to work for audiences who disliked sport or had never seen a Formula One race in their lives. It had to thrill and emotionally engage people who had never heard of Ayrton Senna.

Staging Formula One is incredibly expensive.