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)
The War with Grandpa (2020)
1 audio problem - chronological order
Directed by: Tim Hill
Starring: Robert De Niro, Uma Thurman, Oakes Fegley, Rob Riggle
Continuity mistake: When Grandpa shows his old phone to Sally the way he holds it differs between the front and back shots.