Continuity mistake: When the cop pulls over the mob's limo, he parks his motorcycle perpendicular to the vehicle, but in the next shot it is parked facing in the same direction as the limo.
Revealing mistake: At the very end of the film Clint's corrupt boss drives away from the docks. He does this at a certain speed. Just before the time bomb goes off the car goes at a much slower pace and also Clint's boss has changed into a dummy.
Visible crew/equipment: The camera and cameraman are reflected in the glass in the shooting practice room.
Revealing mistake: When Clint crashes head-on with the bent Copper on his bike (near the end of the film) It is obvious that a dummy stand-in Cop is used for the 'moment supreme'.
Continuity mistake: As Clint Eastwood hunts down the last store robber, he moves swiftly from behind the end of a row of shelves, quickly aims and shoots number three hood dead. This is filmed from behind and his stance is legs spread akimbo. But in the next shot, looking back at him with gun raised, his right leg is braced forward and left backward.
Other mistake: After the pool massacre, when the shooting stops, at the left of the screen and right off the policeman's helmet, a man sits down and then lifts the beach chair up.
Other mistake: When Callahan meets Sunny in his apartment lobby and she asks him, "What does a girl have to do to go to bed with you?" Callahan replies, "Try knocking on the door." and if you look behind Callahan at the Trolley going down hill, you can see a kid waving to the camera.
Other mistake: When Harry and Early Smith are in Lt. Briggs' office, Briggs' first name on the desk nameplate is spelled "Neil", but when Harry and Early Smith leave the office, Briggs' first name on his office door is spelled "Neill."
Continuity mistake: When Harry hits Grimes head-on with his car, the car comes to a rest and Grimes' legs are draped over the motorcycle, but in the next shot, Grimes is lying on the ground and his legs are beside the motorcycle.
Visible crew/equipment: When Harry returns to the trashed car after the last motorcycle cop was killed, he leans into the back seat to look for the bomb and Briggs pulls a gun on him. At this point, a small boom microphone is reflected in the window behind Harry.
Visible crew/equipment: When Harry is running up the steps to enter the aircraft carrier, you can see a camera and crewman in a white hat below, just above the wood wall.
Continuity mistake: During the supermarket scene, one of the thugs points his shotgun at Early Smith and tells him to "Freeze". At this point you can see the till is open, but after a quick cut to Harry, we return to the cash desk and the till is now closed.
Continuity mistake: When one of the hijackers says "Now close that door!" to Harry in the aeroplane, he is pointing his gun directly at Harry, but in the next shot he is pointing his gun downwards.
Revealing mistake: When the girl falls out the hotel window after one of the officers shoots her, you can see that the girl is an obvious dummy.
Audio problem: When Harry is talking with the crime scene technician, they are looking at the bullet trajectory in the pimp's car and a distinct female sneeze and cough can be heard in the background.
Revealing mistake: Near the beginning, a couple of men are shot in the back of a car. The guy in the middle, Ricca, is supposedly dead but takes several normal breaths as the shot lingers.
Revealing mistake: Multiple times during the final chase, tire marks on roadways are visible where multiple takes of the stunts happened.
Continuity mistake: After the pimp is killed, Harry and his partner follow a couple of cars across the Golden Gate Bridge back toward the crime scene. The sky changes between shots of the vehicles.
Character mistake: The coroner says the pump was shot with a full mag from a magnum which is six rounds but the pimp was only shot with five.
Other mistake: In the beginning credits Harry says "This is the 44 magnum, the most powerful hand gun in the world" but later when he's at the range with David Soul and the other cops, when asked about his what his gun loads he says he uses .357 lite magnum.
Suggested correction: When at the range with the rookie traffic cops, Harry says he shoots "light specials" out of his 44 magnum which provide more control than a .357 magnum with wad cutters.
