Continuity mistake: The T-1000 punches his body through the window of a helicopter to get inside. An instant later, the hole in the windshield is gone. (01:56:35)
Continuity mistake: David Sloane (Sasha Mitchell) is the brother of Kurt and Eric Sloane (shown in Kickboxer, with Jean-Claude Van Damme). In the opening scene you can see pictures of the brothers, but the Kurt and Eric Sloane featured on the photos are NOT the Kurt and Eric Sloane from the Kickboxer movie. You also see pictures of Xian and Mylee, from 'Kickboxer'. Then later in the movie, when David and Xian 'meet', David asks Xian, "Who are you?" Well, he would obviously know, given that he's got Xian's photo hanging on his wall at home.
Continuity mistake: After defeating Fulton Balcus, Sean removes the armor and has no clothes on. As Sean and Mizky leave, Sean is wearing sneakers. Mizky only brought him a shirt to wear.
Continuity mistake: When the firefighters go to the house of the first backdraft "victim" you see that he has gone through the windshield of his car. But when we saw him opening his front door and getting hurled away from the house he didn't land anyway near the car.
Continuity mistake: After the bird of prey first fires on Enterprise, Kirk is thrown right out of his chair to his left and lands on the floor. The camera pans around the bridge briefly, seeing the rest of the crew staggering and holding onto things. In the very next shot Kirk is back in his chair shouting "back off, back off" and the crew back in their positions as if nothing has happened.
Continuity mistake: When Robin is burying his father, he cuts his hand saying, "I swear it by my own blood" and that he will avenge his fathers murder. We see the blood dripping over his fingers. Suddenly the camera shot changes and Robin's hand has no blood seeping between the fingers.
Continuity mistake: Watch the Mustang blow up at the beginning of the movie. It looks to be about an 88 GT convert. When it is shown after the explosion it changes to an 86. Two completely different looking cars. Check out the headlamps. (00:17:50)
Continuity mistake: At the conference, when the President is announced, there is a wide shot of the crowd and you see a lot of people standing in the background against the wall. There are also several spotlights turned on. Then it cuts to the stage where Frank and the squad are walking. When it cuts back to the crowd all the people in the background are gone and the spotlights are switched off. The crowd reappears later and the spotlights are on again. (01:00:50)
Continuity mistake: When Dead Meat has crashed, and Washout's parachute is lying on the road, the ambulance runs over it. In the first shot, the ambulance clearly runs completely over it without catching the parachute at all. In the next shot we see the ambulance hooking the parachute and dragging Washout along the road. (00:42:55)
Continuity mistake: When the Turtles first arrive on screen behind Keno, they leap over the boy to attack the thieves. Their order from left to right when they walk up is Mikey, Leo, Donny, then Raph. The very next shot shows them in the air, and the order is now Mikey, Donny, Leo, then Raph. Donny and Leo switched places between shots. (00:03:35)
Continuity mistake: When Andy finds Whitehurst bound and gagged in the closet Andy removes the piece of clothing used to gag Whitehurst mouth. When it cuts to Whitehurst getting up the cloth is tied back around his neck. (00:19:00)
Continuity mistake: When the jumper shoots Kuffs before going off the ledge, pay attention to the trajectory of the bullet fired from the gun and then to the bullet wound that Kuffs shows us in the taxi cab. They don't match. If the bullet got him where it was supposed to, he would've been hit in the hip/upper thigh area, instead of the side of his abdomen like in the cab.
Continuity mistake: When Tommy and Darwin Mayflower are in the back of the limo, Darwin dives out and the door slams immediately before Tommy has time to catch it. The shot changes to outside the limo and Darwin is just now jumping from the limo. It is not just the same shot from a different angle because this time the door stays open much longer, long enough for the limo to drive out of the shot. From this angle there would have been more than enough time for Tommy to grab the door.
Continuity mistake: When Marlboro Man rides a wheelie next to the motorcycle cop, the bike goes from having wide glide forks to a narrow glide setup.
Continuity mistake: The guy that broke his own neck in the interrogation room strangely appears in the next scene, where Angle loses her head. His face is shown in close up twice. (00:15:13)
Continuity mistake: During the scene in which Alex attacks the two henchmen looking for him on the island, we see him attack the first guy and take him out. As he goes for the second bad guy we see that the bad guy has a pistol in a holster strapped to his waist. As Alex flips this guy over the pistol and holster disappear (most noticeable when the bad guy hits the ground). It is then back in place when Alex removed the gun to shoot a third bad guy coming toward him.
Continuity mistake: When Richie shoots Bobby on the sidewalk, after he spits on him, he walks to the road to get into the red sports car. Bobby's wife then runs over and gets on her knees to attend to Bobby, there is no red sports car on the road in the background, but in the next shot it shows Richie getting into the car and taking off from the position the car was originally waiting.
Continuity mistake: During the big fight scene near the end, the baddie manages to drop the hero down an elevator shaft in a warehouse. The scene ends with a shot looking up the shaft at the bad guy laughing demonically, looking pretty mucky and with hair all over the place. Cut to the next scene where the bad guy appears in a room where the shield beam is generated. Now he is completely clean, has a different hairstyle, and if I remember right has a completely different costume on. (This is because the final fight is actually a combination of two separate scenes - the scene in the elevator shaft was originally meant to come halfway into the film, but the scenes around it were cut, so it was added into the final battle. It has been restored to its original place in the "Renegade" cut of the film, but this mistake is still present in the theatrical version).
Continuity mistake: Towards the end of the movie two of the mob goons are dangling Patrick Dempsey over the rooftop. After a brief scuffle Dempsey is hanging on by one of the men's pants, which are ripped down to his ankles. When it shows the pantless goon fall off it cuts to inside where the mob boss sees him through the window, but his pants are now pulled up.
Continuity mistake: During the night surfing scene, you see a shot of the surface of the water from below, the sun is obviously visible.