For most of the moneyed class, an inquiry into their wealth elicits silence and cringes. Not so with 28-year-old Jamie Johnson, heir to the Johnson & Johnson pharmaceutical fortune. For the Emmy-nominated documentary filmmaker, wealth is the focus of his life's work. In Johnson's first documentary, Born Rich, he exposed how 10 children from families like the Trumps and the Newhouses spent their time - and their fortunes. Now he turns the camera on his own family in The One Percent. Johnson's documentary ... offers a rarefied view of the scandalously secretive world of "the one percent," a small segment of the U.S. population that owns roughly 40% of the country's wealth. Through a series of interviews with high-profile figures like Bill Gates Sr., U.S. Secretary of Labor Robert Reich and economist Milton Friedman, Johnson explores the disparity of wealth in America. Forbes.com: You got your own father, as well as other phenomenally wealthy people, to talk to you. How did you get these folks to open up about such an intensely private topic? Johnson: It wasn't easy. A lot of patience - there was a lot of waiting around. Forbes: I imagine you'll have critics who will call this "rich boy's guilt." What do you say to them? Johnson: That both liberal and conservative economists agree that there is a growing wealth gap, and that it's a problem. It's important to get wealthy people to think about this and think about solving this problem. They are the most influential people in our society and therefore, they should be working on treating this and coming up with a solution.