Continuity: After the fight between Martin and Charlie just before the wedding both fighters get extremely dusty and dirty. Then Mose appears after escaping from the Indians. While the rangers and searchers gather to hear Mose, Martin and Charlie are now in clean clothes and appear to be freshly showered.

Other: There is a scene where a dead Indian warrior is discovered. In this scene he is covered by a large flat piece of stone. When they pull away the stone you can see his chest rising and falling as the "dead" Indian breathes. Much easier to see when viewed in HD.

Continuity: In the scene where John Wayne is looking down at the arrow that Look has left, his moccasin is all brown. In the next shot, his moccasin is partially opened on the side, revealing his sock.

Factual error: The movie's beginning takes place in 1868, yet all the men pack cartridge Peacemaker Colts - not available until 1873, and model 1892 Winchesters - not available until 1892.

Continuity: After repelling the Comanche charge at the river, the three searchers continue on alone, three men, three horses. Yet, after Brad makes his suicidal charge, the next morning the two remaining gents have acquired a pack horses and gear.