Indiana Jones and the Last Crusade - The Incredible Moving Blood
When Indiana Jones is on the ship at the beginning of the movie, fighting the crew for that cross, watch the dribble of blood by his mouth. In one shot it's on one side, and on the next its on the other!
Yeah, I noticed that one as well, it's as soon as it goes from Young Indy (River Phoenix) to our Indy (Harrison Ford), the blood is on the right side of his chin first, and in the next shots of him it's the left side...