Director Ted Braun joins us to discuss his documentary, “Betting on Zero,” which opens in theaters on March 17. The film focuses on controversial hedge fund manager Bill Ackman who is on a crusade to expose global nutritional giant Herbalife as the largest pyramid scheme in history. It gives an inside look at the conflict between Ackman, Herbalife executives, federal regulators and the people who have become involved in the scheme as sellers and customers.

"Betting on Zero" opens at Village East Cinema on March 17.