Breach
Is a mystery really mysterious when the end isn't a secret? Is espionage still thrilling when you know beforehand that the cloak has been pulled back and the dagger revealed? If it's a film as good as Breach, the answer is a resounding yes. Here is a true story that's genuinely stranger than fiction: FBI agent Robert Hanssen spent over 20 years selling government secrets to the Russians, making him the most egregious traitor in U.S. history.