Revealing mistake: When John runs out of the Simmons' house, a jet contrail is faintly visible in the sky at the far right of the screen.
Revealing mistake: After Buck knocks Bates out, Victoria takes the outlaw's clothes as a disguise in order to escape. Miraculously, Bates' clothes, despite his being a foot taller and considerably heavier than Victoria, fit her perfectly. She doesn't even have to roll up the shirt sleeves or the trouser legs.
Revealing mistake: When Buck comes across the first of two bodies in the desert, we see only the dead man's booted legs protruding from the bushes. When he finds the second body, the exact same shot of legs and boots (with the same bushes and rocks) is used over again with the film reversed.
Continuity mistake: When Mano wakes Buck up, Buck's hat strings are hanging down over his face. When the shot cuts, though, the strings are immediately tucked back over his ears.
Factual error: Despite taking a three-day trek across the blazing Arizona desert with no food, water or provisions (and definitely no knives or razors), neither John nor Manolito grows a beard, or even any stubble. They both arrive in Nevermore perfectly clean shaven.
Factual error: The Apache spearhead Buck appropriates is very obviously made from machine-tooled steel. Indian tribes in 1870s Arizona made their weapons points from hand-knapped stone and on rare occasions, iron. They never developed steel-making technology.
Continuity mistake: One of the Apaches throws his lance at Manolito's feet, and it lands beside him at a 30 degree angle. In the next shot, though, as Mano walks away, the lance is sticking straight up out of the ground.
Continuity mistake: Just after Buck jumps in to break Charly's fall, his right hand is high on her shoulder in full shots. But in close-ups, his hand and arm are around her waist instead.
Continuity mistake: A heavy black bag falls from the Simmons' wagon as they pull away from their house. A short time later, it has disappeared from the spot where it landed.
Continuity mistake: Victoria starts the ill-fated journey wearing culotte-style pants. When they get stranded without food, clothes or other provisions, the pants somehow turn into a skirt.
