Other mistake: According to the big photograph in their respective offices Bressler and the DA share the same pair of little daughters. (00:17:05 - 01:10:10)
Other mistake: Early in the movie, when Neville wrecks his car he takes the gas can out of his car and starts walking down the street. As he does they switch to a wide view of the city in which you see about three city blocks. When you look at the only "through" street in the shot, there is a car making a left hand turn about three blocks down that street and just behind the car is the freeway overpass with two or three cars passing on it, before the shot ends.
Other mistake: At the end just as Carter is about to be shot, he is facing the sea as he goes to throw his gun away. At this point the gunman fires and hits Carter square in the forehead. The position of the gunman is shown as being behind Carter and to his right (this is seen when the gunman lines up to take aim). Even though Carter leans back as he throws his gun away, he would have been hit somewhere on the right side of his head or temple at best.
Other mistake: When the man at the start is thrown through the room and his head hits the wall, the picture briefly freezes.
Other mistake: While in Chuck's Cafe, a creepy shadow of a woman enters the camera view and it seems that she is playing the jukebox. No music ever plays in the place. (00:32:00)
Other mistake: When Clint Eastwood arrives at Jessica Walter's house and she has made him dinner, he gets very angry at her and storms out the door stating it's over and he never wants to see her again. He speeds off in his car. It only takes him 1 second to leave through the door, walk to the car, open the car door, start the car, and speed out of the scene making a very loud tire noise. Jessica Walters follows him to the door and we hear the car racing from the scene instantly.
Other mistake: When the Mayflower truck is on the move picking everyone up for the heist, a mysterious hole appears above the truck's cab, cut out in the letter "o" in "Mayflower" when Pop is picked up, that wasn't there a moment before, and then it vanishes. The same thing occurs after the heist, when the truck crashes into the police cars.
Other mistake: At the very start of the chase scene, where the shooter tries to kill Popeye, he looks up to the shooter's position. There are at least 6-7 floors of the building. When Popeye looks over the edge, he can see the shooter running away from the building. In the next scene, he is chasing the shooter on foot and is not far behind him. By the time Popeye had run back down all those flights of stairs, the shooter would be long gone.
Other mistake: At the very beginning of the film, we see Christie commit a murder at the end of the Second World War whilst wearing the uniform of a Special Constable. Christie served during the First World War, and he wears the ribbons of the 1914 or 1914/15 Star, the British War Medal and the Victory Medal on his tunic. Unfortunately, whoever put them on put the bar upside down - they read from left to right VM, BWM, Star.