Audio problem: When R2-D2, C-3PO and the young-lings crash land on Tatooine, one of the young-lings say "Let's do that again". If you look closely, you'll see that his mouth doesn't match what he is saying. (00:09:45)
Audio problem: When the Droidekas start shooting at Yoda and Han, one of them shoot however the sound comes after the shot is fired. (00:16:05)