Joseph Gordon-Levitt aces his aptitude test in a new Snowden movie clip Open Road Films has released a new Snowden movie clip featuring Edward Snowden (Joseph Gordon-Levitt) acing an NSA aptitude test. Check it out in the player below! RELATED: The New Snowden Comic-Con Trailer Academy Award winning director Oliver Stone, who brought Platoon, Born on the Fourth of July, Wall Street and JFK to the big screen, tackles the fascinating true story of Edward Snowden.