Audio problem: Right before the end credits, as Grave Robber says "But Genco may survive if it undergoes surgery", right as Grave Robber says the word "may", his lips briefly don't match what is being said. (Confirmed in DVD commentary.).
Audio problem: In the scene where the polite leader is addressing the Sandins for the first time he takes his mask off and starts talking to the camera but he is muted until James unmutes him. If you watch the polite leader while he is muted he mouths the words "Mr. And Mrs. Sandin" before he is unmuted. However when he is unmuted we hear him finish that statement by saying "Mrs. Sandin" again. (00:33:25)
Audio problem: In the scene where James Caan is lying in bed, practising grabbing a large knife from his arm sling, there is the metallic sound as he pulls out the knife. In the sling are his arm and the knife. There is nothing metal the knife could be pulled against to make that sound.
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: In the sequence where Natalie is saving Bosley and calling Pete, listen carefully. When Bosley warns her that there are thugs behind her, he says Dylan instead of Natalie.
Suggested correction: I just watched the movie...he says Natalie.
Audio problem: When Doc and Marty return to the year 1955, you hear the squealing sound of tyres braking heavily, but the DeLorean is flying. (01:02:25)
Audio problem: When Myles is at the party in the office checking out the web broadcast, a guy and a girl bust in and intend to have sex there. What we hear the guy say doesn't match up with his mouth movements.
Audio problem: When George is throwing up you can hear the vomit sound at the same time as he is spitting. (00:14:45)
Audio problem: At the end of the movie when Vada is singing to her new baby brother, we see a shot from over her shoulder. The movements of her mouth don't match the words she is singing.
Audio problem: In the secret room where Hoskins and Dolores are hiding Roger right before Hoskins hits his head on the lamp he says, "crazy tunes," but his mouth doesn't move. (00:44:25)
Audio problem: When Cher and Tai are at the party and Travis comes up to them he has 2 cups of some kind of drink and all of a sudden you hear a sound that is supposed to be something spilling. I guess they assumed that it was supposed to be the beer spilling on Cher's shoes. Well as you can see nothing falls/spills from the cup, it is just sound effects.
Audio problem: When the kid drinking beer says, "Get me another one babe," his mouth says "bitch," not babe. (00:50:50)
Audio problem: When Dakota and Jerrod start having sex, Aubrey's mother can hear Jerrod's moans through the ceiling. But up until they *really* start getting into the act, the moans that Susan is hearing don't match the shots in the bedroom.
Audio problem: When Corny introduces himself at the auto show, the audio is not in sync with his lips.
Audio problem: At the end, when the Wormwoods are leaving on a permanent vacation, Harry says, "Get in the car Melinda." Matilda corrects him and Harry says, "Whatever," but his mouth does not move.
Audio problem: In the scene where Simba is being attacked by Zira and the other outlanders, he rolls down a small cliff. Zira then says, "Yes, we've got him", but if you watch her mouth she is actually laughing and her mouth isn't moving at all.
Audio problem: In the scene where the janitor is tap dancing in the hallway, the tapping sounds do not match up with the times that his feet hit the ground.
Audio problem: In the prom scene just before Heather is looking around and looking bored, the drummer is tapping on the hi hat, but the sound is a crash cymbal.
Audio problem: In one scene Tom Cruise's accelerator gets stuck - you see him pounding on the accelerator while telling his crew chief Harry Hog "the accelerator is stuck" but Tom Cruise's mouth never moves when he speaks.
Audio problem: After the buzz droids land on Obi-Wan's starfighter, Obi-Wan says, "I'm hit. Anakin?" As he says, "Anakin?" his head is turned to the side, but you can see that the last word doesn't quite fit his lips or the motion of his jaw. (00:05:10)