Last September, when Harry Markopolos was enjoying a nationwide tour of screenings of the documentary on his Madoff-busting crusade, he received a coveted phone call. And it was not from a film critic.
It was from Mary Schapiro, the head of the Securities and Exchange Commission. “I thought I was going to get a tongue-lashing,’’ Markopolos recalled in a Globe interview. Instead, “She was effusive. She said thank you.’’