In a documentary which says almost as much about the filmmaker as the subject, Alex Gibney was hired to make a film in 2009 about Lance Armstrong's comeback to cycling from cancer. He spent hundreds of hours with Armstrong and followed the man who he admired as he set about his “comeback” after a four year retirement. The film did not end as he thought it would.

It was not until the footage was complete and Armstrong had finished a respectable third in the 2009 Tour de France that the stricter anti-doping inspections finally began to see the unravelling of Armstrong’s long argued innocence to over a decade of doping accusations.

Director Gibney’s project was shelved.

The film was reignited in 2013 with a shift of focus in a fascinating attempt to not only expose the deceit but to understand the cult of personality that captured the imagination of an entire country. As Armstrong’s perpetual deceit and dogged denials unravelled, the film captured the now “infamous” Oprah interview where Armstrong confesses to the big lie he had been living.

Following a doping investigation that led to his lifetime ban from competition and the stripping of his seven Tour de France titles, Armstrong went back to Gibney to set the record straight about his career. He agreed to answer the filmmakers questions, but whether they were the right questions will be left to the viewer.

“This is not a story about doping…this is a story about power”.