You have these relationships with people that you care about, but I also try to stick to my job as filmmaker and be fair and truthful about what I saw and my experience of the people, hopefully informed by a deep understanding of them.

I focus on a lot of women's issues.

These days, the media is defining what cultural capital is, and it's easily learned. If you have money, anything can be bought. We see this in China and Russia with what I call the "Bling Dynasty and New Oligarchy" in Generation Wealth. As people got rich and everybody started buying Louis Vuitton bags, it became clear that to distinguish yourself you had to have more than an expensive bag. People began to want the things that money is not supposed to be able to buy - history, tradition, education, and culture.

My photography is often a sociological look at American culture and it's been very well published in the UK.

The people in the popular group say there is no peer pressure because they are at the top of the food chain. Really what they are doing is just eating away at everybody else.

My first book, Fast Forward, was about growing up in the shadow of Hollywood and how kids are affected by the culture of materialism and the cult of celebrity, and I've often felt the reason my work has an audience in the UK is because it's everything the British love to hate about the Americans.

I've often used the extremes in my work to comment on the mainstream. I think that sometimes a subject that I'm working on, like popular culture, is so present all around us that they're hard to see. It's like: How do you see the air you breathe? How do you see how it affects you?