Olivers Stone directs this dynamic, dramatized lecture on who Edward Snowden is and why he was totally right in exposing the US government's covert operation to spy on American citizens. It's not that Stone is wrong. And Joseph Gordon-Levitt does well-measured character work as the titular whistleblower/traitor at the heart of it all. But the film is just too sure of its black-and-white narrative to provide much dramatic friction. As a bit of muckracking outrage, it's firebrand work. As a dramatic thriller, it's lacking in nuance and surprise.FULL REVIEW:Oliver Stone’s high-tech muckraker makes a solid, one-sided argument by Devin D. O’Leary (9/15/2016). 134 minutes R.