Deliberate mistake: When Cochran sabotages the Jet Ranger helicopter by loosening the nut on the bolt securing the linear actuator governor, the bolt is inserted in the wrong direction. The bolt should have been heads up to prevent it from falling out as it did causing the helicopter to crash. Moreover, the linear actuator is on the opposite of the engine from where Cochran disconnected it. (00:38:05)
Deliberate mistake: The Army Sergeant that gives the Blue Thunder presentation's mustache is out of military regulations - much too thick and too long. (00:30:20)
Answer: Yes to A, B, and C.