Near the end of the movie when the rocket-launcher is being used, it usually shows the launch-tubes as all being loaded with rockets, even though several of them had already been fired.
When David Dalton throws the rope over the helicopter's skid, the looped end attaches itself to the middle of the skid, between the front and back leg-braces. A lasso-noose cannot be attached to an enclosed (closed-loop) structure - there has to be an open-ended object for the rope-loop to settle over and tighten itself around.
At the 17 minute mark as Dalton is fleeing the hotel room, you can spot extra KITT cars parked in the lot across the street from the motel.
As the helicopter is being micro-jammed and brought back down, its altimeter is shown to be spinning rapidly, but the indicator-needle is turning the wrong way - the altitude is shown to be rising, not dropping.
The knife thrower throws 7 knives, and all knives can be heard to strike the backboard against which a lady is standing. However, there are but 6 knives present on the backboard when he is finished throwing the knives.
Crew reflecting in KITT's right door at the begin when Michael pulls up to the border.