[on filming his documentary about Google] I didn't think this was an organization that was totally suspicious when I started out. I thought, 'These people are immensely imaginative. They come up with these remarkable new inventions - like a search engine that really works. And, of course, they subscribe to the ideology of the Internet: free culture and free information. But, by the time I'd finished the film I decided that [along with] any belief they had in that system, they'd also worked out that there was a way to make $150 billion. To ruthlessly exploit new-market economic areas that other people hadn't spotted, and then try and dominate them in a monopolistic way. As you walk through the door there, it's almost like you can feel the temperature change.