Continuity mistake: When the SWAT van crashes through Cyberdyne's front doors into the lobby, it comes to rest with the rear doors closed. When Sarah and John Connor enter it, it's in a different position and the rear doors are fully open. (02:00:35)
Revealing mistake: When the T-1000 is chasing John in the transport truck cab, the sparks always appear before the truck actually hits the walls. (02:01:20)
Continuity mistake: When the T-1000 is chasing Sarah, John, and the Terminator in the nitrogen truck, just before Arnie fires the first grenade, a blue car comes between them forming a diagonal line across the road (the Terminator, blue car, truck). After a brief close-up on the Terminator shooting, we cut back to a wide shot, the blue car's disappeared, and the truck's now directly behind him, Sarah, and John; not enough time for them to move like that. (02:01:40)
Revealing mistake: When the tanker truck (liquid nitrogen) is sliding along the ground the sparks can be seen not to be coming from directly under the tanker but ejecting from small canisters slightly higher up the vehicle. (02:02:55)
Revealing mistake: When the T-1000 is firing out of the hole in the windshield of the chopper, a close up shot shows that there is clear tape around parts of the window keeping all the little bits of glass together. (02:03:15)
Continuity mistake: In the car chase just before the final encounter in the foundry, the T-800 slams on the SWAT van's brakes and the helicopter slams into it, crushing the choppers front. A second later it is in reasonably good shape. (02:04:00)
Continuity mistake: When the SWAT van flips over you can see the many bullets holes on top of the Van. However a few frames later the bullet holes change from many to just a few. (02:04:30)
Continuity mistake: The tanker truck is shown having two headlight lenses on each side on the front. During most of the chase the inside lamp is lit, but when Arnold shoots it with the grenade launcher the outside lens is lit. The next shot shows the inside lens lit again, but then when Arnold climbs on the hood of the tanker to fire through the windshield the outside lamp is again lit. (02:06:20)
Revealing mistake: When the Terminator's arm is caught in the wheel and he rips his own arm off and stands up, if you look closely (slow motion can help, but isn't essential) you can see his real arm stretched behind his back under his leather jacket. (02:09:30)
Continuity mistake: In the Steel Mill scene, Sara has 8 shells. She shoots the T-1000 once (7 left), then she drops an unused shell (6 left), then reloads (5 left in theory, but there are now 6 on top of the gun). Later she loads the shotgun with the other 5 shells (one's disappeared, but it's back to what there should be) and recocks the gun, ejecting the other good shell. Later, she nearly kills the T-1000 by shooting him with 7 shells. (02:10:20)
Revealing mistake: When the two Terminators first fight in the steel mill, in close - up shots the T-1000 is played by Robert Patrick, but in medium shots it's a stunt double who looks nothing like Robert Patrick. (02:13:55)
Revealing mistake: When the T-800 and T-1000 first begin to fight in the steel mill, the T-800 puts his fist through the T-1000's head causing him to revert to liquid metal form, then as the T-1000 is throwing the T-800 from side to side you can obviously tell that the T-1000 is just an actor wearing a highly metallic mylar suit in some shots. (02:14:10)
Revealing mistake: After the T-1000 finishes battering the Terminator with the beam, the Terminator drops to the floor and starts dragging himself. When you see the stump of his left arm move forward then backwards, the string moving the stump is visible. (02:18:15)
Revealing mistake: In the scene where John is helping Arnie up after the T-1000 has been exploded and sent to his doom in the fiery pit of molten steel (Arnie is saying "I need a vacation"), you can see how the effects crew haphazardly put on a fake busted mechanical arm underneath Arnie's coat and how it bulges out from his shoulder. You can almost see how they just tied Arnie's arm back behind his back and put a fake arm over him. (02:23:35)
Revealing mistake: Right after the T-1000 has been terminated and the T-800 is "saying goodbye" you can see the face make-up where you can see his metal endoskeleton bending with facial movement as he speaks. (02:25:00)
Other mistake: In the tanker truck/pick-up truck chase, after the tanker rams the pick-up and destroys the wooden shelter in the bed, you can see the Terminator turn the steering wheel right but the truck turns left instead. You have to look very closely to see this.
Continuity mistake: When the nitrogen truck's grille is destroyed by a grenade, the damage is primarily in the upper right corner. In subsequent shots, the damage is more extensive.
Other mistake: When Lewis looks at the cup that he got from the coffee machine, the cup has two Jacks and two Aces. When he looks at the bottom of the cup, it has a Queen underneath giving him two pairs, but he tells Gwen the receptionist that he got a full house.
Suggested correction: There are more cards displayed on the right side of the 2 aces, we can't see them. There are probably 2 queens there.
No there aren't. There's only 4 cards on the side of the cup. That's the whole point of Wildcard Poker cups, 4 cards with one on the bottom.
Well actually there are 5 on the side of the cup, but indeed that still wouldn't be enough to get a full house with a queen. But still, he is allowed to be wrong.
There's only 4 cards on the side of the cup and the card at the bottom. Https://www.youtube.com/watch?v=ovq9xOQNamk and go to the 00:36 mark.
It's possibly because multiple takes were made of this scene and different cups were used. This can be evidenced by the cup that falls to the floor being different to the one seen in his hand. Presumably, in one take he did have a full house, but they forgot to use the correct cup in the shot that was used.
Continuity mistake: The T-1000 arrives at the steel mill and grabs a striped coloured handlebar. The place he places his hand differs between the wide and close-up angles.
Other mistake: Repeated footage of a car crashing is used during the chopper/SWAT van chase. The clip is first seen just before the onset of the shootout between Sarah and the T-1000. The same clip is shown a second time as the two vehicles are about to pass up the nitrogen truck just before the chopper flies over a pedestrian bridge.
