Continuity mistake: Dyson is shot at and falls on the floor, an instant later he is lying several meters to the right over a carpet.
Other mistake: When John and Terminator arrive at Pescadero, John's hair is immaculate, perfectly brushed, not realistic for someone who's just arrived on a motorbike.
Visible crew/equipment: Right before the big explosion goes off at Cyberdyne, Arnie, John, and Sarah get in an elevator. The camera comes close to the doors as they close, causing it to be reflected in the metal.
Other mistake: Near the end, after they enter Cyberdyne, the other guard notices the main guard gone. He goes to the bathroom to find him. "Gibbons, you can't leave the desk like that." The interior door is slightly closing when he opens the main door. How is this possible?
Suggested correction: That's explainable by air pressure from opening the outer door causing the inner door to move. They don't have handles and only have to be pushed open so they can be moved by air pressure.
Revealing mistake: Right before Sarah fires the second shot at Dyson at his home office, you can see a puff of smoke come from where she is at. The problem is, she doesn't shoot until a second or two after that and no sound is heard. What is the puff of smoke?
Suggested correction: After the first shot, there is only a brief close-up of Dyson and then one of Sarah before she fires the second shot. There is no smoke coming from her side before she fires the second shot, as that can't be visible. There is some smoke appearing after the second shot though, in the shot with the camera behind the desk and Dyson diving under it. But that's probably electronics flying and exploding from the second shot hitting the computer. A second or 2 later, she opens up full auto.
The puff of smoke is outside.
Revealing mistake: During the chase on the bridge, when the Terminator opens the door of the moving car to shoot at the truck behind, it is obviously stuntman Peter Kent and not Arnie.
Revealing mistake: When the Terminator stabs the guy leaning over the pool table, on the last shot of him, aching, check a protruding hump on his back, revealing where a safety pad was placed under his clothes.
Continuity mistake: After being visited by Reese, Sarah runs down the corridor. Note the window shadows on the floor: There are two sets of shadows plus a blurry third one. Sarah runs past the second set towards the third, then the shot changes and she has moved back to the first set where she began her run.
Continuity mistake: The Terminator's holding his pump shotgun with both hands, then just his right hand when he keeps advancing on the bartender outside the biker bar.
Continuity mistake: During the final battle, the T800 at one point is trapped but manages to free himself (losing one arm in the process). He comes back to slice the T1000 in half with a metal bar. The T1000 kicks backwards at him (karate-style) - and the metal bar is flying away! Yet in the following shot, it is still there embedded in the T1000.
Suggested correction: It doesn't fly away. It is wrestled out of the T-800's hands as the T-1000 turns around because it's stuck in the T-1000's body.
Like, to the top left of the frame? Possibly. Depends a bit on playback speed too.
Other mistake: After the Terminator shoots off the first padlock, you see John driving towards an overpass. However, as the Terminator is shooting at the truck, the overpass is nowhere to be seen. Not until it takes the top off the truck.
Continuity mistake: After the T-800 breaks the window in the mall, a blonde girl in a white and blue shirt is on the left but in the next shot is on the right.
Visible crew/equipment: While the T-1000 drives the trailer, in front of him the camera crew is visible on a pick up truck.
Suggested correction: Entry not specific enough.
How is this not specific enough?
For one, there's more than one chase scene involving a truck in this movie. This entry doesn't specify which one. Nor does he specify if we see the camera crew itself or simply a reflection of the crew on the vehicle.
I think he is referring to a truck seen just before the Freightliner runs the stop sign and hits the brown and dark blue cars. The "camera" truck though looks like it has trash cans in the back, not a film crew, at least nothing that I can see in the 1080p version to indicate it is a film crew. The reverse shot of the collision if from a fixed position camera close to the cars so wasn't shot from a truck, so again no evidence this is a film crew truck.
Revealing mistake: When the T-800 is reloading his shotgun in the alley with John, he reaches into his pocket, presumably to grab shells for the shotgun. In the shot with him and John in frame, his hand comes out of his pocket empty, but we hear him load another shell into the gun in the next shot.
Other mistake: In the Director's Cut, there is a scene where they "reset the switch." The Terminator tells Sarah and John to "rotate the locking cylinders counterclockwise." But the power tool is rotating clockwise.
Continuity mistake: When the helicopter smashes into the back of the police van the front gets completely smashed in and crumples. Next shot is from the side - the helicopter falls to the ground and the front is intact, then smashes to pieces on impact.
Continuity mistake: When Sarah uses her shotgun to shoot the T-1000 in the eye, the first camera angle reveals that the shot has disfigured his head forcing the tissue around the eye to be pushed outwards as a result. In the next shot, when we can see Sarah through the hole as it 'heals', we can see that the head is already in its regular shape as the hole fills.
Continuity mistake: As the liquid nitrogen tanker crashes into the SWAT truck, the semi's right headlight is destroyed, but a second later it's back in position, and no damage to the nose of the semi at all.
Visible crew/equipment: As Sarah starts to slide to a stop as she sees the Terminator, you can see the shadow of the camera on her left shoulder and arm.
Revealing mistake: When the T-1000 goes to kill the guard in the mental hospital, from the angle looking at the T-1000 the seam where the prosthetic matches into the guard's skin is visible.