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 Corny introduces himself at the auto show, the audio is not in sync with his lips.
Audio problem: In one scene where Jackson is caught by some bad guys you can see (and hear) that a couple of times when Jackson laughs it is badly dubbed over.
Audio problem: In the scene where Charlie is handing the girls their wine, Bill is speaking to his buddy, asking him if he likes his coat. Watch his mouth, the spoken words do not match his lips. (00:15:30)
Audio problem: In the scene when Josh (as Tom Hanks) comes back to his house to talk with his Mother for the first time since becoming "big", she starts screaming and backs away from him. She backs into the piano she says "Go away, go away." but her lips don't move at all. (00:16:45)
Audio problem: Right at the scene where Reggie Jackson points the gun at the Queen, Drebin fires a shot off at him from his watch. It goes astray, hitting some fat lady, and we hear him saying "whoops!" but his lips don't move. (01:16:10)
Audio problem: After Johnny escapes into the city, Ben returns home and starts to shout at Fred for letting him get out. Watch Freds mouth closely as he replies, some of the words he says back to Ben have been removed. Judging by his mouth movements, they appear to be swear words he is saying, and as the film is rated as PG, they were probably removed so they would not cause offence.
Audio problem: 99% of Mooch's drumming is not in synch with the drumming sounds, especially the ride and crash cymbals.
Audio problem: In the church, Brenda lets Joey eat her brains. When she says "Okay, take them baby ," her mouth doesn't move, and her following screams are matched with a closed mouth as well. (01:03:35)
Audio problem: When CC first meets Hilary, CC is under the boardwalk. As CC talks, the audio is ahead of her mouth movements, and when she says "Ritzy or Cheap?" her mouth is completely shut.
Audio problem: In the bar scene where the twins are dancing with the girls, keep an eye on the band in the back. The singer and the guitarist are not always singing and playing in time with the music. Most visible at the end of the scene, the music has the guitar playing a long riff and no vocals, yet the guitarist is barely moving, and the singer is singing with emotion.
Audio problem: When Melissa and Stacey go to the singles party at the health spa, they approach Jamie at the bar. Jamie states that the drinks are all made up of 98% mineral water just like your body. Melissa then says that if the drinks were anything like her body, they'd be made up of 98% ice cream. However that's obviously not what her mouth is saying. She appears to say Twinkies.
Audio problem: When Tess meets up with her boss toward the end at the helipad, notice that the helicopter engine sound is playing, but the props aren't turning. Helicopters blades always turn if the engines are running, just like an airplane.
Audio problem: When Wanda asks Ken if he's heard from George Ken stutters "No, he had to go to the b-b-b", as it cuts we can see his mouth is closed. It's impossible to say "b" with your mouth closed. (00:02:50)
Audio problem: When Ernest pushes the cart with the passenger on it, he accidentally goes into the conveyor, Ernest says, "Have a nice day." When Ernest says this, his lips don't move when he says it.
Audio problem: When Sgt. Toomey first meets the men he says "Attention". They don't respond so he says a firmer "Ten-Hut". The words Ten-Hut were dubbed in as his mouth movements show that he actually said Attention again.
Audio problem: When the drunk driver steals Les's Caddy his nerdy friend says you can't take this car and Les says "He took our car, we're gonna take his" but his mouth doesn't move at all.
Audio problem: When Adam, Barbara and Juno walk into the attic, Juno says "You should have been studying those lessons since day one." However, her lips never move.
Audio problem: In the shot where Dodger dissolves his partnership with Oliver and jumps into a large concrete pipe which gets hoisted into the air, Oliver shouts "But wait," but his mouth makes no movement at all. (00:09:05)