Audio problem: When the sheriff offers Dude a beer and says, "It's cold," when Dude is getting off his horse he says, "As long as it's beer," but his lips don't match the words. (00:14:00)
Audio problem: When the rowers in the Roman galley were going normal speed, you could tell that the drum was sounding before the drummer hit it.
Audio problem: Throughout the movie when they are underground, when someone speaks sometimes you hear an echo and sometimes you don't.