When Alex Gibney set out to make a movie about cyclist Lance Armstrong's 2009 Tour de France comeback, the documentarian admits he bought into the hype: The man who'd cheated death was coming back to reign supreme - and clean.
''All of us fans wanted to believe,'' said Gibney, who directed this summer's well-received documentary ''We Steal Secrets: The Story of WikiLeaks.'' ''You want to root for people. That is what sports are all about.''
In fact, it was such a positive film, Armstrong himself was a financial participant in the project.
Then in 2011, things changed. The ''feel-good movie,'' as Gibney called the original version of his documentary, was nearly finished when Armstrong's ex-teammates, Tyler Hamilton and Floyd Landis, began going public about Armstrong's doping.
That same year, Armstrong faced a U.S. government investigation into doping allegations. Then in 2012, a federal Anti-Doping Agency report alleged Armstrong and his U.S. Postal Service-sponsored team used p...