Other mistake: In the first scene with Randy telling Jamie Lee Curtis to turn around, the reflection in the TV never mirrors the actual position of Jamie Kennedy. (01:22:30)
Other mistake: Carolyn Stilton shoots Blondie O'Hara in the head and is lying dead over her dead husband. Just before the final scene starts she begins to open her eye.
Other mistake: Look closely at the dead trooper's closed eyes. You'll notice during the length of the shot that his closed eyes move. Fast forward to make this more obvious. (00:37:55)
Other mistake: Vanessa is illiterate, but easily reads the Hi-Way Café menu. (00:48:35)
Other mistake: Early in the movie when Shale is screening the commercial for his "services," the rolling text describing his abilities lists "Helicopter Repelling" instead of "Helicopter Rapelling".
Other mistake: When the killer and Segal are fighting in the last scene, and the killer is thrown out the window, you can clearly see the black shards on the window bend.
Other mistake: During a chase, Gibson makes a left turn at an intersection causing two girls to suddenly lunge backwards to avoid getting hit. The girl with the long black hair turns to her friend and smiles. This was most likely because she just successfully played a part in a big movie, but I don't think she'd be smiling at that moment. Most of the people in that shot don't react normally but are more explainable given the New York setting.
Other mistake: Shooting two forty-fives at once is hard. Willis must think so too. One gun fires blanks and the other gun operates like a real pistol, even emptying out shells, but is not firing. This is very noticable in slow motion during his first standoff.
Other mistake: Right after the second agent gets out of the drivers side door of the car he rolls down the middle of the road. No cars in the background seem to stop or move out of the way. Also just as he is thrown watch the close up shot with Sandler in the backseat and Wayans driving, the car that would have hit the agent just keeps driving behind them the entire shot.
Other mistake: In the scene where John and Tommy are in McHale's Bar in 1981, John offers Tommy a cigarette from a Marlboro cigarette box. However, when Tommy puts it into his mouth to light it, you can see a small camel on top of the cigarette.
Other mistake: When the bus starts to leave the Hoover dam (as seen through Dallas' binoculars), the driver is missing. The steering wheel is shown with no-one behind it.
Other mistake: When Aaron is asked how he pleads, Vail instructs him to not answer and invoke his Fifth Amendment right. He then presents the judge with case law that supports that instruction. Roy attacks Martin after the doctor has left the room. That means the evaluation is still being completed. But after the attack, Vail tells the doctor he cannot change the plea in the middle of a trial. There could not yet have been a plea because the evaluation was still being done.
Other mistake: During a serious conversation between Kathy Ireland and John Enos she covers her mouth and it's obvious she's laughing.