In the scene at the beginning of the movie, when Blue and Laurie are being chased from the testing center by the security guards, they duck in behind a steel door and lock it from the inside. The security guards run up to the door, and when they cannot open it, he shoots the door and shoots through the lock. The problem is, it was a steel door and he shot through it with a standard handgun, not nearly powerful enough to penetrate through the door, no less shoot off the bar on the other side. Also, the bar was less than one inch thick and on the other side of the door, which was plain on the front with no indications of where the locking mechanism is on the other side.