Revealing mistake: While inside the tunnel in Rome, before the yellow Fiat makes a U-turn multiple skid marks from previous takes are visible. Though one might pressume that the marks were already there, they are at the same spot and have the same pattern as the skid marks that the cars make seconds later.
Continuity mistake: When Miguel is with the pedophile, he is given bread (or something similar) to eat. Shot changes, and the bread is suddenly bitten. The bread's length keeps changing several times between shots.
Continuity mistake: When the Mafia boss dies, he falls next to a fruit stall. A crate falls next to his head, and fruit falls on the floor. When the shot changes, the crate has moved away, and the fruit has vanished.
Continuity mistake: Scott hugs his daughter and caresses her face while she holds his wrist. From the opposite angle, her hand is gone.
Continuity mistake: When Voller grabs the Grafikos tablet from the chest, it's covered in sea snot. When he shows it to Indy, most of the snot is gone. Though a couple of drops dripped while taken out of the chest, the missing amount of moss is really big. This happens in a matter of 2 seconds, before Voller rinses the tablet.
Revealing mistake: When the Minotaur is born, he doesn't cast a reflection on the building right next to him.
Revealing mistake: During the heist at the beginning of the movie, despite there being two cars skidding, the underground road is covered in multiple skid marks from previous takes.