Continuity: Near the end of the film, when Clint Eastwood is holding on to the bonnet, his left hand is at the top of the bonnet by the windscreen, in the next clip, his left hand is over the nearside of the car by the wheel, this happens more than once.

Continuity: Harry is driving when his partner asks, 'Hey, what's with the Citizen?' Look to the left. There is a red Pinto parked close by. As Harry stops, reverses and drives toward the Citizen, another white car magically appears behind the Pinto.

Continuity: In the scene where the fireboat brings Eastwood and Daly out to Alcatraz, Eastwood uses the fire hose against a bad guy in a tower. As Eastwood prepares his hose attack, there are close up shots showing Eastwood turning the hose mount from his right to left, and long shots showing Eastwood turning the hose mount from his left to right.

Continuity: When the soldier demonstrates the bazooka on a truck, the projectile hits the front of the truck, but the explosion comes from near the back of the truck.

Factual error: When Harry shoots the last badguy in the tower with a LAW, the safety of the weapon is still on. The pin to arm it has to be pulled out. If it were armed, you would see a little pin, instead of little block, between Harry's little finger and his ringfinger.

Revealing: In the scene in the church where Harry needs information from a priest, he throws him into a confessional so hard that the wall separates revealing how flimsy it is.

Continuity: In one scene, the mayor of San Francisco and his aide go to a Giants baseball game at Candlestick Park. When the mayor & the aide are seated and having a conversation, a young man siting a row or two behind the mayor leans slightly forward, looks directly into the camera, and starts smiling and waving.