The Good, the Bad and the Ugly (1966)

Continuity mistake: When Blondie abandons Tuco in the desert, watch the rope around Tuco's neck. It changes between shots, sometimes over his left shoulder, and sometimes hanging down in front of him. It is not due to the camera angle.

Continuity mistake: Towards the beginning of the movie, Angel Eyes rides up to a house where he has to get information from a man inside and then kill him. After Angel Eyes kills him at the kitchen table, his son runs down some steps behind Angel Eyes in the background with a rifle in his hands. Angel Eyes pulls out his revolver, turns around quickly, and shoots him dead. Take note that the pistol is not pointing directly at the boy as he is firing it. (00:14:30)

RLN

Continuity mistake: When Blondie is saved by the mortar shell, and it shows the empty noose, it is completely different than the noose that Blondie had around his neck. The loop that the noose went through to hold it to the beam has changed.

Ian Hunt

Continuity mistake: When Tuco is riding his horse, he encounters three bounty hunters - one fires a shot making the horse misstep, and fall, bringing Tuco down to the ground. One of the bounty hunters ask Tuco, "Hey amigo, you know that you have a face beautiful enough to be worth $2,000.00?" He has a big blade of grass between his lips as he backs away from Blondie (Eastwood), however, there was no blade of grass between his lips when Blondie and he were close to one another. As he backed away, he had a rifle in his right hand and a wanted poster in his left, and he knew that Blondie had a gun pointed at him through his overcoat, so he was not able to put a blade of grass between his lips at any point. (00:17:50 - 00:18:50)

RLN

Continuity mistake: When Blondie and Tuco are planting dynamite to blow up the bridge, they are standing in the water. During the following blast, they are hiding away next to the river and from then on, they are totally dry again.

Continuity mistake: When Tuco tosses the rope to Blondie to hang himself with, the rope is all tangled up with no knot showing. In the scene break that cuts back to Blondie, the rope has changed to a nice neat coil with the hangman's knot showing.

harold

Continuity mistake: When Tuco stops the run away wagon in the desert, Blondie's pistol is not in his waistband. As he walks back to the wagon, it is.

John Samford

Continuity mistake: When Tuco pulls the corporal from train they fall down a steep grade. When train runs over the corporal, they're on flat ground. The corporal would be too heavy for Tuco to carry far enough for the ground to flatten out. Watch the ground when the train approaches before the jump.

Continuity mistake: A dirty Union cavalry officer hits himself to clean off the dust that made him appeared Confederate. His first two strikes barely shake the dust on his uniform, yet, after a cutaway and two off-screen strikes, his arm is almost completely free of dust. (01:16:50)

Fireball