Laura Poitras’ latest documentary Citizenfour is all about what happened right after a man named Edward Snowden did an utterly brave thing - leaking secret NSA documents for the world to see. On the run from his former employees, the young man ended up at a hotel in Hong Kong where he met with Poitras for a series of revealing interviews.
The interviews were conducted over 8 days in May 2013 with some later material filmed in Russia and reveal the startling truth behind the information Snowden leaked as well the lengths to which the government would go to make sure he never speaks to anyone else in the press.
The film went on to win the Academy Award for Best Documentary Feature at the 2015 Oscars and, if you missed it in cinemas, you can watch it now for free online.
Thoughtmaybe has the video, and its all online legitmately as part of a library of 'challenging films'.