Breach stars Chris Cooper as real life FBI agent Robert Hanssen, who for nearly 25 years leaked secrets to the Russians in exchange for money and diamonds. The bureau suspects Hanssen and enlists the aid of Eric O'Neill ( played by Ryan Phillippe) a computer smart surveillance expert, looking to become a full agent. O'Neill is appointed as Hanssen's personal assistant after he ( Hanssen ) is demoted to a mundane desk job, and thus begins a tense covert operation to bring down the mole. This is not a high octane bang bang spy thriller. In fact, you sub will get very little work here. And it is slow moving at times, but I found myself being drawn in to the point where I was holding onto the arms of my chair. This is no doubt due to the superb performance by Chris Cooper and a subtle one by Phillippe. Breach is really a character study of two men, one good and one bad, and though it is a true story I was familiar with and knew the ending, I couldn't help but be totally immersed in the story, right up to the conclusion. And I should also mention Laura Linney, who plays Phillippe's contact and superior. Her part is small but as real as life. If you like character driven films, you will definitely like this, and IMHO, Cooper's performance is the stuff Oscars are made of.