At 37 minutes Brian Keith is engaged in a conversation around a campfire with Turk and Billy. His hat is tilted over his right eye and then in the final two shots it is tilted over his left eye.
When the posse brings Turk out of the church at the end of the film he has a noose around his neck that is removed but it is never shown or explained how he ended up with a rope around his neck to begin with. It wasn't there when he was left in the church.
When the three males leads of the film are seen right at the beginning riding horses in the desert, they pause to talk to each other. In less than 15 seconds, the cloud formations behind them all change dramatically during this time.
When Yellowleg runs after Kit to tell her he has found the grave marker, a shadow of the camera and its operator is visible on the ground.
When the posse takes Turk captive, they put him on a horse with a rifle in the boot and with his hands cuffed in front of himself.
When Brian Keith leaves Maureen O'Hara behind so he can steal a horse from the Apaches, she is alone in Apache territory. Whilst he is gone, she strips off and takes a bath in a pond and Brian Keith comes back and she's out swimming around with outlaws and Apaches lurking about.
Brian Keith goes to all the trouble of stealing a horse from the Apaches, tipping them off, because he claims they need two horses. The stolen horse breaks its leg and they are right back to one horse with an angry Apache after them.
The impact of "Yellowleg 's" injured shoulder varies throughout the film, for example he has difficulty handling a gun or raising his arm in the doctor's office yet seems to have no problems using the same arm to mount his horse or to clamber up rocks.