Audio problem: During the Walmart scene, it seems they edited in Gary saying "Oh, God." However, it's over no visible mouth or throat movements. (01:15:17)
Audio problem: At the beginning of the movie there is a woman riding a motorcycle. It seems to be an adventure bike, but the sound is from a Harley Davidson type of a bike.
Audio problem: When the Protagonist and Priya are talking whilst walking down a street in Mumbai, just before the scene ends, Priya says "Sator's helping. You have to find out how", but her mouth doesn't move along with the line. (00:50:55)
Audio problem: When the invisible man slaps Sydney (making Cecilia look guilty), the sound of a bare hand slap is heard. But the invisible man was wearing gloves as part of his suit, so the sound would have been duller and blunt.
Audio problem: When Diana walks away from Steve, he yells a final line that is noticeably dubbed over - does not even sound like Chris Pine's voice. (01:58:05)
Audio problem: During the avalanche, Mulan's horse makes the exact same sound when galloping on dry hard ground and when he gallops on soft snow.
Audio problem: When William reveals himself as the killer, he asks Zeke to be his partner. When Zeke says "I'm in," in a wide-shot, if you look closely, his mouth doesn't move, revealing the line was added in post.
Audio problem: When we are first introduced to Hayden lecturing the classroom, the shots from behind do not match the sound with the movement of his jaw.
Audio problem: When George pulls the pistol and pointed it the first Weeboy, he cocks it, and we hear the cocking sound. Then he immediately turns to point it at another Weeboy and the already-cocked revolver makes another cocking sound. (01:17:00)
Audio problem: When Peter is sitting next to Grandpa in front of the fireplace, he has several consecutive lines when he's seemingly reading off a cue card, and his mouth movements (or lack thereof) do not match the audio. (01:25:00 - 01:25:21)
Audio problem: When the RV starts up and drives to the TV spot after the initial greeting from the manager, the engine noise is a gasoline engine, when it should be a diesel noise, as it's a diesel pusher. (00:07:00)
Audio problem: Sergeant Hwang asks Captain Seo if he can have some of his gin. Whilst Seo is walking over to his desk, right as he says "Got something to report", the sound of the gin being poured from the bottle and into a glass can be heard. Immediately after the sound of the gin being poured is heard, we can suddenly heard the sound of the bottle being placed on the desk. There is no way these two sounds would have been heard instantly. After Hwang poured the gin into the glass, he would have had to turn the bottle from a rotated position to an upright position and then lower it down onto the desk, so a few seconds would had to have passed in between the two sounds, but there wasn't. (01:10:30)
Audio problem: When Kevin enters the car he says hi to his dad, and as it pans to the other side the dad says hi, but you can see he does not talk and it is not his voice. (00:06:04)
Audio problem: When Allison is on the freeway, a group stops and helps. She asks where they are going. Her mouth says something different.
Audio problem: When Bart is looking through a magazine and starts to rip a page out, the whole page is lifted and obviously already loose; Bart sets it down to look like he is tearing it out, and sound effects are added to make it appear he really is ripping out the page, but the sounds don't really match his motions. (00:31:20)
Audio problem: She's holding a suppressed AR-15 type rifle made to look like a mk12 mod 1. When she fires the shot it sounds unsuppressed. Firing a rifle with a suppressor is still loud but hearing safe, this shot required hearing protection. (01:39:00 - 01:40:30)
Audio problem: During the talk of the three Glorias, the teen Gloria's mouth isn't in sync with what she's saying.