Shot over a five year period across thirty two states including more then 400 interviews. The largest documentary of its size in this genre.
Most of the travel was by car where many crew received a high number of speeding tickets during late hours at night.
Eventually a waiver had to be drawn up to be able to avoid any more exuberant fees coming out of the budget for speeding tickets.
During filming, experts from five of the top universities in the U.S. allowed the cast and crew onto their campuses: Princeton, Harvard, University of Chicago, Yale and University of Pennsylvania.