WATCH: Joseph Gordon-Levitt Takes on World-Famous Whistleblower in First Trailer for ‘Snowden’ 

The A-lister takes on the headline-grabbing story of a government employee going rogue in his new film.

After months of anticipation, the first trailer for Snowden was released, offering an inside look at the brilliant young man who discovered the NSA’s illegal surveillance methods and decided to publicize the injustice.

Joseph Gordon-Levitt has clearly committed to his character, adopting a flat affect and a monotone to capture the revered and loathed whistleblower. The trailer seamlessly covers Snowden’s rise in the intelligence community, his personal life with girlfriend Lindsay Mills (Shailene Woodley), his moral dilemma upon discovering that his own government was breaking the law…and what he decided to do about it.

The film also stars Zachary Quinto, Tom Wilkinson, Scott Eastwood, Timothy Olyphant, Nicolas Cage, Rhys Ifans and more.

Snowden bows in theaters on Sept. 16, 2016.