Factual error: In the opening shot of the episode they show a plane landing at an airport, and it say Dulles International Airport on the screen. There is even a nice shot of the US Capitol building in the background, the problem is that Dulles Airport is about 25 miles from Washington, if the shot is real it was filmed at Reagan National Airport.
Continuity mistake: When the director is looking at the 2 photos Booth hands him, there is a shot of the two photos one on top of the other neatly. Camera changes and they are no longer neatly on top of each other. The bottom one is sticking out and should have been visible in the previous shot.