Other mistake: When Kate is viewing the T-X on the security cameras, the two views of the corridor do not match each other. For example, the first camera shows glass walls, whereas the second shows wall panels. (00:23:30)
Other mistake: When the T-X is driving the crane during the 'target acquired' shot, the view from her display shows her much higher above the ground than she should be. (00:31:50)
Other mistake: After the T-X is hit by a truck, her primary weapon is damaged and she is seeking a replacement. As she is cycling through available weapons, dummy text is below the weapon name. The text reads: "TEXT regarding the current weapon is being displayed in XP040 weapon sub-window. Important information regarding this weapon is being displayed here." (00:59:52)
Other mistake: When General Brewster tells John and Kate to go to Crystal Peak, Arnie confirms its location as "52 miles north-east, bearing zero-point-fiveĀ°." Later, when flying the plane, Kate says aloud "all right, oh-one-fiveĀ°, 52 miles." That's a 10-degree error, for 52 miles, which would put them somewhere in the ballpark of 20-25 miles off-course. (01:17:25 - 01:29:40)
Other mistake: At the end of the chase, the crane truck flips and one of the wheels falls off. If it was that loose, it should have come off when the T-X did a right turn.
Suggested correction: Maybe it became loose enough to come off after the right turn.
Other mistake: At the cemetery, Arnold shoots up the police cars. We then see his point of view, showing no human casualties. The problem is, he is standing up and further back from the drive. The shot from his point of view is down low and near a police car.
Other mistake: When the crane arm is going through the front of the building with the T-800 on the hook, the final corner column has an explosion and begins to collapse before the arm gets there.