In an exclusive Web extra filmed after his appearance on “Viewpoint with Eliot Spitzer,” Charles Ferguson, the director of the Academy Award-winning documentary “Inside Job,” surprises Eliot Spitzer by revealing that Larry Summers worked for the hedge fund Taconic Capital Advisors while he was president of Harvard University, underscoring Ferguson’s point that academia and the financial industry have been colluding.

“Beginning about 30 years ago, at the same time that the financial industry and other industries realized that it was a very good investment to buy politicians, they also realized that it was a very good investment to buy academics who gave very important economic advice to the government and also shaped the general popular discourse,” Ferguson says.

For more from Ferguson, read an excerpt from his new book, “Predator Nation,” here.