Revealing mistake: After Reese blasts the Terminator with his shotgun while at the Tech-Noir nightclub there should be huge holes in the Terminator's shirt and jacket, but there are none. (00:34:10)
Suggested correction: There are holes that appear in the Terminator's jacket and shirt. Most noticeable is when he is thrown through the glass out onto the street.
Revealing mistake: When Kyle gets to the past and hits the floor his body changes - even his hair and the sweat on it, showing the stuntman.
Revealing mistake: Just before the tanker blows up near the end, there is a scene of it turning to hit a vehicle. The cable pulling the truck is visible.
Revealing mistake: When the inner workings of the T-800's damaged arm are shown, he uses a vise grip to pull one of the finger control rods. As he does, the finger uncurls a split second before the rod is pushed back.