During the Reagan eighties, the idea that money was a good thing - it was good to be rich; that wealth was a reflection of your character. We see this today in perceptions of Donald Trump: the idea that money is an expression of success and even goodness. I compare that with my dad's generation, where the American Dream was about giving your kids a better life, but not just in material terms. The American Dream was also about doing something good in the world. The home was at the center of the dream, but home also represented community, shelter, and stability for your family.

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.

What I'm documenting can be hard to distill, because it's all around us like the air we breathe. I often need to go to a place where I can capture extreme moments.

All my film ideas and subjects have come from photography.

Race is a huge factor when it comes to income and social inequality, and it plays a role in the structural barriers you are talking about. But when you're in the upper echelon of the 1 percent - even though it's certainly a more white demographic overall - there are fewer barriers.

When I first moved from photography to filmmaking, I was worried about how big I had to become. I was one person, or maybe me and an assistant, and I had these small cameras, and maybe a flash.

The 1970s were the height of social mobility. College was accessible. My grandfather was a poor immigrant who went to a public school in Ohio, and my father went to Harvard. That wasn't unusual. There was a feeling that anything was possible and you didn't have to be born into money to have a successful life. Now, people don't believe in the idea that anything is possible. We have more inequality than we've had ever before and a greater concentration of wealth in the hands of a few.