Continuity mistake: Inside the plane, Indy looks at his bleeding wound. Note how shiny and wet it is, as opposed to an instant shot later when it looks dry.
Continuity mistake: The bitten parts of the panini that Helena holds change between shots.
Continuity mistake: When Renaldo is shot in his chest, Helena jolts forward nervously in shock while she grabs a handrail. An instant cut later, she is calmly sitting as if nothing had happened.
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.
Continuity mistake: When Voller grabs the tablet from the chest, he holds its upper left side. A shot later, he is holding its lower left side. When he shows it to Indy, the grip changes again twice.
Continuity mistake: On the boat, when Klaber grabs the wooden chest, he puts his hand on it with his sleeve soaking wet. A shot later, it's dry.
Continuity mistake: When the kid and the sailor are on the boat, watching the sea, the man leans with his hands on the handrail. A shot later, he's leaning on his forearms.
Factual error: When Jones and Shaw rans out of the Hotel back alley in Tanger, there's a modern Scooter moped with 5-spoke plastic wheels.
Factual error: In the prelude scene, when Indy enters the car where a number of German soldiers are having supper, the latter are singing "Lili Marleen", a popular soldier's song in the 1940s. The only problem here is that the song was banned in Nazi Germany from 1942 after its last performer, Lale Andersen, was found to have sympathized with Jews. With common soldiers singing it while a strict officer might burst in among them at any time, it would have meant extremely harsh penalties for them.
Continuity mistake: When Indy grabs the dial, his thumb surrounds its border, touching the carved words on it. When the shot changes, his hand is suddenly on the left side of the dial.
Continuity mistake: On the boat, when Indy lights up the wax block, it is next to the edge of the table, together with the whiskey bottle, lighter, and cork. Two seconds later, the block is on the center of the table and the rest of the objects are on the opposite side they were.
Continuity mistake: On the boat, when the kid hands Helena the dial, she touches it with her right hand. A shot later, her right hand is away and her left arm is leaning towards the dial.
Continuity mistake: When Indy is hanged, the bomb falls downwards slowly. Check the writing on it, and you'll notice that a shot later, the bomb has moved upwards and is repeating the previous movement.
Continuity mistake: When Indy is hanged, the bomb is stuck parallel to the ground. A shot later, it's perpendicular to the ground.
Revealing mistake: When the AA machinegun on the train goes berserk and destroys everything, Indy hides behind some crates. For several shots, Harrison Ford is replaced by a lame CGI, which transforms his head into a videogamish, lifeless face.
Continuity mistake: In the tuktuk, Indy tries to snatch the bag from Voller, who grabs it strongly. His left hand changes positions depending on the shot.
Continuity mistake: Indy asks the students if they've done the reading. A boy and girl in the front row turn their heads to the right and stare at him. Shot changes and they are looking away and repeating all previous movements.
Continuity mistake: Indy's horse gallops past a blue car, and then a white one. Shot changes, and now it's metres behind, riding past the white car again.
Continuity mistake: While on top of the train, Basil waves one arm, pleading for the train to stop. The shot changes, and he's waving both arms.
Continuity mistake: At the farewell celebration for Indy's retirement, the dean calls for the gift to be presented to him, mentioning it is "a token of our gratitude." There's a cut in the middle of the sentence, and Prof. Plimpton is waving a young student in with his left hand, then the right hand.
Answer: There is a bit of dialogue en route to the airport when Voller sets the instrument that says, "the first hand sets the destination," as in the time you want to travel back to. This would make the device completely absurd in principle if true (that's why I wanted to mark it as a plot hole/stupidity). Since it's supposed not to open portals but just detect them, it can't be that there are infinite portals for every moment in time you can choose to go back to (and they even close). The sky, while vast, is not infinite. We then find out that it is a trick since it is set to actually bring you to just one destination, but they don't know it yet.
Sammo ★