This is an outstanding film. It's concentrated focus on the fascinating true events and personalities involved in the greatest spy case in US history makes this a perfect movie for intelligent adults.

Chris Cooper is outstanding (sure to be nominated for Best Actor) as Robert Hanssen, a top FBI agent who was a mole for the KGB during most of his 25 year career. His portrayal is greatly complimented by Ryan Phillippe who plays Eric O'Neill, an FBI newbie looking to become an "Agent", who is assigned as a clerk to Hanssen as part of an investigation into Hanssen's sexual perversion. Outwardly Hanssen is a proselytizing arch-conservative Catholic. Eric is a clever enough to soon figure out that there is something more going on with this assignment, perhaps even a Bureau vendetta against Hanssen. His handler, agent Kate Burroughs, played by Laura Linney, is walking a thin line in managing O'Neill who is becoming less and less committed to spying on Hanssen, as he comes to admire Hanssen's dedication, ethics, his views on the inner workings of the FBI, and his unexpected occassional kindness.

I doubt if you will see a better film this year.