 CONT: After Calvera and his men are driven from the village the  first time, there is a sequence in which three of his men start  taking potshots at the villagers from the trees. One of these shots  strikes Chicos hat and knocks it off his head. He even sticks a  finger through the hole after retrieving it, however in a scene just  a couple minutes later, Petra (the Mexican girl) is talking with  Chico. We can see there is no bullet hole in the front of his hat  and at one point, he turns his head 180 degrees in order to look  behind him and there is clearly no bullet hole in the back of his  hat, either. It has simply disappeared.