Audio problem: When Luke says, "Now all we gotta do is find this Yoda, if he even exists," if you look closely, his mouth never moves.
Audio problem: Before the trio crashed into the Daily Planet (just before the battle with Supes), they were heard flying outside the building. For 3 superbeings with the ability to fly unaided, they sure sound heckuva lot like jet-propelled aircrafts. Jet aircrafts are noisy because of their engines, but superpeople?
Audio problem: When Benson is dismantling Hector and putting his brain in the container, he says 'What you can't stand, you run from,' but his lips don't match what he says. (00:48:50)
Audio problem: When Ranulf is resting in bed and explaining the fate of his village to the nun there is a cut to a wide shot of the room and if you look at Ranulf you can see his mouth is not moving any more. Then, cut back to a close-up, and his mouth is now moving again. (00:08:52)