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: 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: 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 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 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: When the old woman is cooking she is stirring the casserole. When it cuts she is spicing the food. (00:20:45)
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: When Bill, Ted, Death and Station, come back from heaven you can see when Death, falls to the ground that he is wearing black sneakers. Up until this point in the movie, he had been barefoot.
Continuity mistake: When Cliff is being chased by the mobsters in the fancy restaurant, he escapes by flying through a stained glass dome directly above the dance floor. Two mobsters below aim up at him and start firing as he crashes through the dome, but no glass showers down on them.
Continuity mistake: During the driving sequence on the mountain road, the foliage shown is inconsistent. For example, when the guy in the BMW cuts Eve off and yells at her through the passenger window, orange autumn leaves can be seen reflected on his windshield. Shots outside the vehicles immediately before and after this shot show only evergreen trees in the area. After this, when Beamer Guy is shown talking on his cell phone, shot from inside the vehicle, the trees seen outside his driver-side window are significantly different than those shown in shots outside the car.
Continuity mistake: As Frank and Tracy are walking across the pipes, there is a close-up shot of the pipe breaking in half as Tracy walks on it. However in the wide shot as Tracy falls, the pipe is intact and breaks again as Tracy falls on it. (01:23:10)
Continuity mistake: Towards the end of Puppet Master II, Torch is about to set Michael on fire when he is hosed down with a fire extinguisher, covering the puppet in white foam. Later, when Torch reappears, he is again still covered, next scene he is clean, then next scene covered again. (01:17:40)
Continuity mistake: On the helicopter at the end, both survivors grab headsets; David when the camera is on the left has a very noticeable wet curl in the middle of the forehead he doesn't have in the shots from the right. (01:21:20)