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.

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 long been interested in looking at the culture of consumerism and also was interested in this connection between the American dream and the house, and the house being kind of the ultimate expression of self and success.

I've also been documenting an unsustainable way of life. And you see in peoples' stories that this world of consumerism does not support the moral and spiritual values - of family and community - that people feel are most important. From an environmental perspective, the quest for more and more is not going to be possible on this planet. This is a historical documentation of an unsustainable path, and my hope is that this work allows people to think about their own agency and the potential for change.

The economist Juliet Schor talks about how our reference group has changed over the last twenty-five years. As we spend less time with our neighbors, we're spending more time with people we know from TV and social media, and this becomes our new reference group. The media is full of images of people with wealth, and we're comparing ourselves to them and aspiring to what they have. Instead of keeping up with the Joneses family, we're trying to keep up with the Kardashians, even though it's completely unrealistic.

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

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?