Audio problem: This scene is repeated multiple times in the movie: usually when the main character enters the "source code" the scene begins by panning over a small pond showing a Canada goose taking flight. However the sound editor makes the mistake of dubbing in a recording of a hen mallard duck.
Audio problem: Near the start of the movie, the Marines are out training and are approached by a group of Hum Vees that are to take them away because of the impending battle. The engine noise from the Hum Vees however is totally wrong, and is distinctively from a Willys Jeep.
Audio problem: In Notes II, Madame Giry voice is out of sync as she says,"Fear his fury.".
Audio problem: When Jill reveals herself as the second killer, we hear Sidney say "Jill". But her mouth doesn't move.
Suggested correction: You can say "Jill" without moving your mouth.
Audio problem: The audio for the Gatling cannon used by the second Samurai warrior in the first battle scene is incorrect as it uses the effect for a gun with a much lower rate of fire even though initially the film is going at a normal pace with no slowdown.
Audio problem: When Hobbs gets out of his "four wheeled tank", he readies his M4 and there is a sound of him cocking it. However, his free hand is nowhere near either the M4 itself, or the underbarrel shotgun. (01:29:50)
Audio problem: When the rover is put upright you hear it. Sound does not travel in vacuum. (00:37:20)
Audio problem: While walking across the concrete garage floor Ryan's shoes make the sound you would hear while walking on hollow plywood.
Audio problem: In the beginning when Holmes "shoots" the dog, Gladstone, with a dart and Watson says "What have you done to Gladstone now?", look closely and Watson's mouth doesn't move.