I don't usually like these kind of espionage movies due to their being dull and predictable. Well, I have changed my mind with this one. This was a real sleeper with a real intelligent story line that keeps you guessing and surprised throughout. Also the surround sound and the great camera work really adds to it. On a scale of 1-10, I would give it a 10 as I don't know how you could make a better film on this subject.