Igal Naor, the actor playing Gen. Al Rawi (a top commander in Saddam Hussein's army), portrayed Saddam Hussein two years earlier in the TV series House of Saddam (2008). Naor is an Israeli actor of Iraqi Jewish descent.
Ray Miller is based on U.S. Army Chief Warrant Officer named Richard "Monty" Gonzales who had the real-life job of hunting for weapons of mass destruction after the fall of Baghdad. Gonzales was hired as a consultant on the film.
After President Bush is seen making the announcement on TV, a blonde woman in a green/blue shirt is seen stood up, clapping. In the very next shot, the same woman is seen sat down, talking excitedly to people at her table.
Miller wears Casio G-Shock watch model number AWG-591MS-1A wristwatch (Which was later authenticated by Universal and won as a prize in a competition). This watch was first released in 2007 and clearly could not have existed in 2003-2004.
When the white jeep with Poundstone arrives at the airport, the windshield is seen being dirty. But after the car stops and he gets out, the windshield is clear.