Audio problem: As Ian is leading Wanda to his room, he asks her what it is like to have both her and Melanie in her head. She responds saying "It's crowded." The camera angle changes to show their faces before she finishes the word "crowded", and her lips are not moving. (01:06:20)
Audio problem: When Mindy uncovers her motorcycle and starts it for the first time in the film, the engine sound suggests that the motorcycle (which appears to be a Ducati 1199 Panigale) has a 4-cylinder engine (identifiable by the distinct smooth car-like sound with higher pitch). The Ducati Panigale has a 2-cylinder engine, which should be sounding a lot rougher. But in the end scene where Mindy drops Dave at his house with her motorbike, it makes a completely different sound, which is how the 2-cylinder bike sounds in reality. (00:14:10 - 01:34:25)
Audio problem: When the Police play "Roxanne" for Hilly, the actors are just lip-syncing to the studio version; though his laugh has been edited out, the atonal piano chord at the beginning of the song, a now-famous gaffe from when Sting accidentally sat on a keyboard during recording, still remains.
Audio problem: When Jeremiah talks to Portia when she returns to the Quest school, with the camera showing the side of his face, he is not speaking the words we hear. (00:42:00)
Audio problem: When Mia tries to escape in the station wagon there is the sound of tyres squealing on asphalt when the car is on mud.
Audio problem: The helicopter appears in front of the window (like, a few feet away) of the command deck of a ship in the middle of the ocean, with the ship being in full alert and with guards all around the premises but who all somehow missed its deafening arrival. (01:35:50)
Audio problem: When Sarah is firing her pistol in the desert we see the slide lock back. However the hammer still manages to hit the firing pin, making a click noise - that would be impossible. (00:41:20)
Audio problem: When Dr. Newton and Hermann are with the baby Kaiju, Hermann says "Should be three," but his lips aren't moving at all.
Audio problem: When Han and Frank are fighting in the hangar, Frank grabs a handgun and you can hear him chamber it. After he tosses the handgun to Han, he chambers it also, but no round can be heard hitting the ground. Nor could you hear Frank decock it.
Audio problem: When the train pulls away after being decoupled it really sounds like a steam train, not a diesel electric. (00:59:30)
Audio problem: In the mansion during the second scene, Louis is among the group and his phone goes off vibrating. It is extremely obvious that the sound of the phone vibrating was actually someone humming in attempt to mimic the sound, and doing a poor job at it.
Audio problem: When the SEALs in the Chinooks take fire, a helicopter crew member fires their weapons. The weapon is a M240 7.62mm Machine Gun, but the audio of it firing is that of an M134 Minigun.
Audio problem: On the oil rig at the start of the movie, the 2 actors monitoring the deep sea submarine's progress are subjected to a major explosion noise - yet they don't even notice it. Only when the 2nd explosion comes and rocks the whole rig do they react.