Revealing: During the hotel scene where Arnold is on the horse chasing the bad guy on the motorcycle, keep your eye on the carpet. As the bike clears a path through the lobby, you can see tyre marks all over the carpet where this shot has been practised many times.

Revealing: During the shoot-out in the restroom, the villain fires shots down the length of stalls.  Then as he walks down kicking each door open there is a shot from inside one of the stalls.  You can see where the explosives were taped to the back of the door to make the gun shoot holes.  There is residue on the back of the door and all of these rectangular clean area where the holes ended up being.

Revealing: When Helen Tasker pretends to be the hooker, Doris, at the hotel room, she does a striptease and you can see a burn scar on her right hip from a childhood accident. Then it is gone during closeups, as a body double is used.

Audio problem: In the public restroom fight, Arnold slams one of the bad guys head into the ceramic urinal. Although you hear two loud and clear "klonks", the urinal bends when Arnold presses the bad guy's head down. [Only visible in the pan and scan version.]

Revealing: During the scene where Arnold's character is escaping from the mansion at the beginning of the movie, there is a part where he is running down a snowy hill through trees. At one point during the hill scene, Arnold does a flip head first. When he lands the flip, you can clearly see the stunt double's face as he turns to shoot at more bad guys.

Deliberate "mistake": In the scene where the bad guy is attached to the missile and fired, in the split second before it hits the helicopter you can see below it a building called SUN BANK, but the letters are backwards. A close look reveals the likely reason - to the right of the reversed building is one which looks just like the building to the LEFT of the Sun Bank building behind the harrier a few seconds earlier. Most likely they couldn't film the chopper from the right side because there was a building there (the one the camera flies through), so they filmed it from the other side (the same side they'd filmed the harrier from), catching the "Sun Bank" behind, then had to flip it to have everything facing the right way.

Continuity: In the scene when Harry brings Helen's purse to Gibbs in the van, it is raining very hard. When Harry is standing along side of the van talking to Gibbs who is in the van, he is not getting wet and there is no rain falling when the camera is facing in towards the van. However, when the camera angle is facing out away from the van, it is pouring rain and Harry is getting wet.

Revealing: After the bathroom shootout, when Harry Tasker has his team contain the terrorist leader in front of the building they're about to chase through, just before the terrorist rides the motorcycle through the front door, if you watch carefully, you can very clearly spot Arnold Scharzenegger's double on the horse.