Continuity: Towards the end of the film when "Molly" is chasing Varrick's aircraft, the front fenders of his car have miraculously repaired themselves having been stoved in earlier when he crashed into various other cars in the scrapyard as he first went for the kill.

Plot hole: Swapping his dental x-ray records with his deceased partner won't convince anyone that Varrick is dead - then (as now) the patient's name appears on the x-ray.

Audio problem: In the scene at the end where Joe Don Baker is chasing Walter Matthau's plane around the junkyard, you hear the unmistakable sound of tires screeching on pavement, yet the surface of the junkyard is all dirt.

Continuity: In the scene where the wimpy banker is talking to the boss near the fence, the shadows in the background vary tremendously. They start out as very small, then engulf the entire background. Obviously, hours were spent between takes.