Oscar-winning documentarian Alex Gibney was not alone in being duped by Lance Armstrong and his strident denials that he had doped and cheated his way to cycling's biggest prizes over the years.
But Gibney was in a unique position as the director who had set out to make what he called a "feel-good" film about Armstrong's comeback in the Tour de France in 2009. That feel-good film was scrapped once doping allegations snowballed, a federal investigation was launched, and the U.S. Anti-Doping Agency confirmed he had cheated.
When Armstrong finally admitted as much to talk show host Oprah Winfrey earlier this year, the film was revived and resulted in a very different documentary called "The Armstrong Lie."
Gibney is still in touch with Armstrong, who didn't like the new name of the film, but seemed to accept it. The filmmaker said Armstrong has had to accept some tough truths - including a federal whistleblower lawsuit that could end up costing him over $100 million if he loses.
"The Armstrong Lie" opened in U.S. theatres on Friday (November 08).