The Insider was adapted from "The Man Who Knew Too Much", an influential article on tobacco industry whistleblower Jeffrey Wigand, written by journalist Marie Brenner for the May 1996 issue of Vanity Fair [REF].
Wallace said that two-thirds of the film was quite accurate, but he disagreed with the film's portrayal of his role in the events; in particular, he objected to the impression that he would have taken a long time to protest CBS's corporate policies [REF].