At 11:49 on the DVD, a barefoot Unas is lying on the ground and the bottoms of his feet are clearly visible. Rather than being bare, they have shoe soles.
When Jack O'Neill is in the hospital bed, he lays down on his damaged arm, held in a sling.
When Daniel and Chaka first make contact with the other Unas the actor playing the leader of the local Unas tribe is missing a contact lens in several shots, his right eye is clearly one of a human and not an Unas when he first comes out of the woods, but when he is standing by the campfire his right eye matches that of an Unas.