Audio problem: We see a Russian commander giving the order that one person gets a gun and a second follows him - the audio is out of sync. It is not another person giving the orders that we can hear, as we prominently see him shout with a megaphone. (00:09:45)
Audio problem: When trying to get Waddell on the radio, Galentine says he can't reach them. Camera changes and he's stopped talking but his mouth continues to move. (01:21:40)
Audio problem: When Vercingétorix tells Caesar that Alexander the Great was dead by the time he was Caesar's age, his mouth movements don't match the words. In this shot he is, I think, speaking French with the English dubbed over - he looks like he is saying 'mort'. (00:24:50)