Other mistake: When Conan is fighting the Ape-man and his friends are watching behind the mirror, the cold air on their breath is actually cigarette smoke. You can see it swirling every time they speak. In one shot you can actually see Malak's hand move behind the other actor and he's holding the cigarette. I think this is why there are audio problems here, they had to dub the voices in because the actors couldn't speak with the smoke in their mouths. DVD viewing.
Other mistake: When Conan etc. are walking through the ice palace looking for the princess, not only do they miraculously dry off, but not one of them gets goose bumps, even though it is cold enough to fog up their breath.
