Audio problem: When Ajax is at the park handcuffed to the bench, he calls the woman a lousy bitch, but his mouth never moves. (00:53:03)
Audio problem: When Tom Skerritt first "interfaces" with Mother after being awoken, he says, "Good morning, Mother" - it is not even close to being Tom Skerritt's voice. According to the book 'The Making of Alien' this line was dubbed in by Ridley Scott as Tom Skerritt wasn't available at the time.
Audio problem: During the thunderstorm at the end, the thunder comes every couple of seconds, it doesn't correspond to the lightning at all, and it sounds exactly the same every time.
Audio problem: When the truck is being lifted by the magnet, you can hear the driver talking but when you see him through the driver's side window, his mouth is not moving.
Audio problem: When Holmes and Watson are about to go out to the Blackhorse Tavern the second time, Holmes answers Watson's question as to where they're going by saying "the Blackhorse Tavern." However, his lips do not move.
Audio problem: When Bond is being shot at while motor-boating away from his pursuers in Venice, at one point during the chase, they shoot right next to a rope on his boat and a sound from a silenced handgun is heard when the bullet hits the wood. No one is using a silenced handgun.
Audio problem: When Wells is en route to the Hyatt, exhaust sound from the taxi as it descends the hills of San Francisco seems to have been stolen from the Mustang in "Bullet." When the taxi pulls up in front of the hotel, it sounds again like the ordinary taxi that pulled away with Wells earlier.