Continuity mistake: When the Terminator and John are talking while driving the pet truck through the desert with Kate in the back, keep watching out the Terminator's side. In the distance, you can see about three huge cone-shaped trees and every time the Terminator talks, they're always in the shot. In one shot, there's about five, then it's always three again. (00:39:45)
Continuity mistake: When the T-850 walks around at the gas station, shopping, he fills up the shopping basket, and one of the bags of chips can't fit in the basket. However in the next clip, the basket is half empty and there is plenty of room for the two boxes of candy he grabs at the counter. (00:41:00)
Continuity mistake: In the scene at the gas station, Arnie removes the iron bar from the truck's doors and discards it. The truck drives off and is seen to have no bar holding the doors closed. There then follows a lengthy conversation between John and Kate. At the end of this conversation the truck is seen driving down a slight hill just before the scene changes to Scott's apartment- look closely and you'll see the iron bar on the doors, despite Arnie having removed it. (00:41:40 - 00:45:20)
Continuity mistake: When the Terminator is at the AM/PM, he is filling a small basket with various food items. One item in particular was a large bag of chips. The contents in the basket change from shot to shot, most noticeably the chips disappear completely. (00:42:35)
Audio problem: While the T-101 takes off the crowbar at the gas station it makes a clanging sound before it even leaves his hands. (00:43:15)
Revealing mistake: Look carefully at the metal bar with which Arnold secures the doors of the van with the Vet inside. As he bends the bar straight so he can open the doors, it vibrates a little indicating it is a rubber fake. (00:43:15)
Revealing mistake: When the animal rescue truck crashes through the seminary gate, the sparks that fly come a few seconds after the truck hits. (00:48:25)
Visible crew/equipment: In the scene where John, Catherine and the Terminator are in the mausoleum getting the guns out of the casket, you can see two "marks" taped on the floor in front of John and Catherine. (I think they were red and green). (00:49:55)
Continuity mistake: When John, Kate and Arnie are at the cemetery getting the weapons from Sarah's casket, Kate pulls a handgun on Arnie. He looks up and is facing his right with his legs turned in that direction. They go back to Kate and then back to Arnie. Now he is turned to the left. (00:51:05)
Continuity mistake: As Catherine grabs a pistol and shouts "Outta my way!", the Terminator stands up, with his left quarter profile towards her. After a cut to her, then back, his position changes to right quarter profile forward. (00:51:05)
Continuity mistake: At first, the color of the steering wheel of the police car (the one taking the TX disguised as Kate's fiance) is grey. In a close-up shot of the police officer looking at the TX's arm sticking through his chest, the wheel is now light brown. (00:52:50)
Continuity mistake: In the scene when the TX, disguised as Kate's fiance, is in a car with the two policemen on their way to find Kate, the TX kills the police officer who is driving by sticking its hand through his chest. His partner sitting in the passenger seat immediately reaches for his gun, causing his seatbelt to slide off his right shoulder. Cut to a shot from behind him and the seatbelt is back on the same shoulder. (00:52:55)
Revealing mistake: After the Female Cyborg kill's the two agents in the car, there is a crane shot of her car turning around in the middle of the road where you can see see the mark in the middle of the road showing the driver where exactly to turn. (00:53:45)
Continuity mistake: In the scene where the Terminator is carrying the casket out of the mausoleum, the police open fire from his left side. Close-ups show bullet holes on the front and top of the casket even before he turns to return fire. (00:54:40)
Continuity mistake: During the scene when Arnold carries the casket, a shot shows many bullet holes on its front side. Two shots later, these holes have disappeared. (00:54:45)
Revealing mistake: During the entire hearse chase scene, the transmission shift lever is in park. (00:55:00)
Continuity mistake: During the shooting scene at the cemetery, note one of the stones (rectangular from the left) behind T-101 when he comes out carrying a coffin. You can see it has 5 holes - 3 left, 2 upper right side. However, a few seconds later, it has 6 holes, but their position has completely changed, 3 upper side, 3 right side. (00:55:25)
Revealing mistake: When the Terminator uses the the G-36 assault rifle, the muzzle of the rifle is fitted with a maneuver ammunition device which shows that he uses no real ammunition, but a variety that just makes "bang" sounds without a bullet. (00:55:35)
Factual error: When Arnold is done shooting at the cops in the graveyard scene, there are birds singing in the background. No way that any birds would be left in that area (not to mention singing) after at least 15 machine guns have been firing for more than 2 consecutive minutes, not to mention the cop car exploding. (00:55:50)
Revealing mistake: When the hearse has no roof it is obvious at one stage that it is not Arnold sitting behind the steering wheel but his stunt double. (00:57:10)
