Documentary on wealth gaps

This documentary was made back in 2006.  I like it, though the filmmaker could have articulated his argument better, more concisely.  The scenes where he interviews Milton Friedman show that he doesn't have a very nuanced, clear idea of exactly what's wrong.  The filmmaker is instinctively aware that something is wrong, but the details escape him.  I can relate--the guy is probably about my age, and much of the nuance of my understanding of the current economic system has developed in the years since 2006.  Props to the Chicago wealthy heir, who is the one rich guy other than the filmmaker who is at least aware of and thinking about the implications of wealth disparities and gentrification.