Lance Armstrong – what a great story that was! The high achiever who is knocked back by cancer but rebounds the stronger, confounding doubters (and doctors) to carry off his sport’s greatest honour a record seven consecutive times! Who would not want to believe that? Almost no one, as it turned out. When, in 2012, Lance Armstrong was banned for life from competitive cycling and stripped of his Tour de France titles, when the US Anti-Doping Agency condemned him as a central player in the most “sophisticated, professionalised and successful” abuse of drugs in sport’s history, many even then were reluctant to let go of the heroic image. Alex Gibney’s Bafta-nominated documentary The Armstrong Lie takes a particularly interesting position. Gibney filmed Arms