Audio problem: In the scene with John and his friend in the garage when his adopted mom is telling him to clean his room and he is revving his dirtbike, if you look closely, he has the throttle wide open, but the motor winds down. (00:12:15)
Audio problem: John Connor's bike is an XR-100, it is a 4 stroke engine. In the movie they dub in the sound of a 2 stroke. It is a quiet little engine so that is why they probably dubbed in the sound. (00:32:00)
Audio problem: When Arnold Schwarzenegger is being chased by the truck and and pulls John out of his bike,you can hear John scream but if you look closely he doesn't move his mouth. (00:37:35)
Audio problem: In the scene where John is running away from the T-1000 in the corridor of the mall, one of the curators shouts out "Hey!" The Terminator appears in scene so John runs back the other way passing the same curator he ran past before who then shouts out "Hey!" at him again. The curator's mouth never moves during both of his lines. (00:31:30 - 00:31:53)
Audio problem: When Myles is shot at in his home, after he ducks, the window behind him breaks and smoke comes outs as if a bullet had gone through, but no sound is heard. (01:32:50)
Audio problem: When Terminator lifts John off his bike and places him on the chopper, John's cry is heard but his mouth isn't moving.