Zero Dark Thirty
After reading No Easy Day, I was worried that the movie would try to recreate the initial (and false) story of the raid (where they said Bin Laden took a his wife as a human shield, etc.), but the raid at the end is 100% accurate to how it's described in No Easy Day. Very very awesome. I do wish the movie showed some of the SEAL training, as they built a full-size replica of the Bin Laden compound out of shipping containers and plywood and ran through the raid for weeks leading up to the actual mission.
Before I saw it I was hoping Argo would win Best Picture, but now I'm torn between the two.