Factual error: After Tony demonstrates the Jericho for the first time, the aftershock hits the soldiers in the face and blows at least three people's hats off. From the side shot of the event, happening simultaneously, you can only see one hat being blown into the air. The aftershock also makes a dead stop, weakening too quickly and appearing anti-climactic. The aftershock should have blown at least ten yards more before dying out.
Factual error: A tank's main gun could not blast Iron Man out of the sky, as depicted in this film, and the "lucky shot" theory holds no water. In military history, there are only a couple of instances of tanks using their main guns to shoot down aircraft by chance, and those involved tanks repeatedly firing their main guns on known flight paths until an aircraft literally ran into a tank round. However, in this movie, Iron Man comes out of nowhere on no known flight path, he's not recognizable as an aircraft, he's traveling at hundreds of miles per hour, and he's only airborne for about 4 seconds before he's hit with a tank round. The tank gunner could not possibly identify Iron Man as a new target, elevate the main gun, track him and fire in 4 seconds. Modern tanks do not have the ability to acquire and track fast-moving targets with the main gun, nevermind fast-moving aerial targets.Charles Austin Miller