Edward Snowden is, depending on your point of view, either a moral whistleblower who did us all a huge favor, or a traitor who should spend the rest of his life in prison.
Hollywood is hoping to help make your minds up with a new movie sympathetic to Snowden’s cause. Because Oliver Stone is a director who doesn’t mind only showing one side of the story.
With that in mind it’s probably best to treat Snowden as a nothing more than a movie, and not a historical documents full of nothing but historical fact.
So, does it work as an actual movie? This review by What The Flick?! should help you decide whether to go see Snowden.