Audio problem: When Ron and Harry are walking down the corridor towards Potions class, Ron says, "...Quidditch trials coming up, I need to practice," but his mouth is not moving and/or not in sync with that dialogue.
Audio problem: When Langdon is in the Vatican archives for the second time and they are running out of oxygen, He uses the Swiss Guard's gun to shoot the glass. The problem being it takes roughly 0.8 seconds from the time the sound of the gun goes off to have any impact on the glass. He is no further than 5 metres from the glass, but still, this should be instantaneous.
Audio problem: DVD version. In the scene where Lisbeth is about to be buried alive, she gets shot three times by her father as she tries to run away. The sound effect of the gunfire includes the tinkling of a spent cartridge hitting the ground (clearly heard in the rear right). However, the father's gun is seen to be a revolver, which does not eject spent casings when fired - the spent casings stay in the cylinder. (01:50:30)
Audio problem: Simone's scream at the end of her game is the same as one used earlier in the scene. (00:06:00)
Audio problem: When Deacon is talking to the cop's brother's corpse, he says "you're not talking to me now?" and his lips aren't moving. And moments later, he says "what? You don't want to?" And "you don't talk because..." Same things, his lips don't move.
Audio problem: When Daniel is on top of the tree house, his screams don't always match up to his mouth. (01:23:20)