When Alex Gibney set out to film Lance Armstrong’s comeback to professional cycling in 2009, little did the documentary maker know how Armstrong’s story would eventually pan out.

Originally titled The Road Back, Gibney had to re-write and re-edit his work as the story changed – and gave the film a new title, The Armstrong Lie.

It’s a damning portrait of Armstrong as he fights his way back into the pro peloton, fending off allegations of doping with lie after lie. Then Armstrong comes clean to Oprah Winfrey, admitting to a career of taking banned substances and blood doping culminating in the stripping of all seven Tour de France titles.

As well as stark interviews with Armstrong pre- and post-confession, The Armstrong Lie also talks to those around him that played a part in Armstrong’s life – including former friends Frankie and Betsy Andreau, trainer Michele Ferrari and former team-mate Jonathan Vaughters.

The film is set to be released in November, and the official theatrical trailer has been released. Click on the play button below to watch the trailer.