Audio problem: When the Ancient One is explaining to Bruce that taking the Time Stone will affect their reality, there is a shot from behind the Ancient One where she says "Millions will suffer", but her mouth doesn't move when she says the line. (01:24:20)
Audio problem: When Happy is talking to Peter in the kitchen at the charity event, from the angle over Happy's shoulder he's talking but the side of his face isn't moving, from that angle we should see his chin move up and down.
Audio problem: When Pikachu has coffee cups all over Harry's office, Tim starts knocking them over. The cups make a plastic/can sound, but the cups are cardboard.
Audio problem: When Brixton is telling Hattie about the future of the planet, the audio in the shot from behind his shoulder is a clear overdub. (01:01:00)
Audio problem: During the last scene with Ken, he is talking to Phil, as he jumps into the J-Car. He starts the car and the sound of the car is not that of a carbureted 7.0L (427) V8 (which is what it should be) but the sound from a 2005-2006 Ford GT. This is the car Ford sold for 2 years as a tribute to the GT40. The start up sound with the supercharged V8 (which is in the GT) is unmistakable. Especially to car people. When he's accelerating the engine/exhaust sound changes to the 7.0L (727) V8. (02:18:51)
Audio problem: The FBI agent is in pursuit of a suspect in a hospital, once he enters the stairwell he draws his Glock handgun, and a click can be heard for a safety disengaging. Glocks are striker fired, they contain no external safeties that can be manipulated that would cause a sound. A sound can also be heard after the gun is already drawn from the holster, representing a holster draw sound. (00:22:22)
Audio problem: Throughout the movie, different characters' voice lines vary in audio quality. Sometimes they are standard quality; other times they sound extremely compressed. These low-quality audio clips are often mixed with high-quality audio clips, too. (00:00:01 - 01:30:27)