Other mistake: During the bathroom shootout scene, the terrorist shoots the bathroom stall walls from a heavy angle. When the walls and doors are shown from the front while being opened, the bullet holes go directly through both walls of the doors, which would only look like that if they were shot from directly in front.
Other mistake: Harry commandeers one of the AV8-A's to go to save his daughter, and makes a clumsy vertical takeoff (where he bumps the police cars, etc). The reality is that, besides the deafening noise, the AV8-A generates a strong down wash when it takes off vertically which would have blown all the people on the bridge (and even some of the cars) in all directions. A few seconds later there is a cut to a real AV8-A vertical takeoff over water where we can see the effect of a real down wash on the water's surface. (02:02:20)