Factual error: When Indiana Jones ambushes the Nazis with the Ark, he threatens them with an anti-tank rocket. This is set in 1936, and anti-tank rockets weren't developed until the American M1 in 1942. The Germans immediately copied it from captured weapons and made their own much larger version known as the Panzerschreck, then Panzerfaust. The Russian RPG which Indy is holding was developed from the Panzerfaust in 1949. (00:41:55)
Continuity mistake: When Indy is in the map room, he blows sand away from a hole and a bunch of hieroglyphics, but in the next shot, there's sand scattered all over the stone he just finished clearing away. (00:52:10)

Continuity mistake: When Indy goes through the windscreen in the scene where he is fighting the balding blonde German, the stunt double playing the German has a full head of brown hair. (01:27:10)

Revealing mistake: After Marion goes in the basket, there is a chase and a truck tips over, if you look amidst the dust, you can see the ram used to put the vehicle on its side.
Continuity mistake: During the middle of the bar fight scene, Indy was slammed on the counter and whispered to the girl, "Whisky". In the next shot she grabbed the bottle and handed it to Jones. The very next shot she hands him the bottle again. It happens very quick. Watch carefully. (00:32:05)

Continuity mistake: There's a shot of the plane at the beginning, taken from the front, looking down the length of the body, where there's no writing on the side. (00:11:45)
Suggested correction: On a good quality frame the number is visible quite clear. Not visible on a poor resolution frame.

Continuity mistake: When Belloq grabs the machine gun, his left hand is on the trigger and his right hand on the gun cartridge as he turns round with his back to the camera, but in the next shot, his right hand is on the trigger and his left hand on the cartridge but in the next shot, his hands have changed position once more, this time left hand on the trigger and right hand on the cartridge. (01:42:55)
Continuity mistake: When Indy is chasing after the truck on horseback, he jumps off the horse and onto the truck, as he does this the horse begins to slow down and fall behind, but as Indy throws the German soldier in the passenger seat out of the truck the horse has disappeared, it could not have been hidden from view behind the truck, because the horse's shadow would have been visible. (01:23:30)
Audio problem: At the beginning of the film, one of the guides goes to shoot Indy with a gun, but as Indy uses the whip to defend himself, the gun bounces off a rock and goes into the water. As the gun hits the rock you hear the sound of the gun firing, but there is no sign of a flash from the barrel or any gun smoke. (00:03:10)

Continuity mistake: In the market chase scene Marion is confronted by a guy with a knife. In some shots the sharp edge is facing upwards, in others it's downwards. (00:39:10)
Audio problem: When Marion and Belloq are getting ready to have a drink, as Belloq pours the wine you can hear the sound of the wine hitting ice, making a crackling sound, but there is no ice in the glasses. (01:04:40)
Revealing mistake: When Marion falls in the Well of Souls, a snake jumps to bite her, but hits the protection window. Its reflection is also visible. (01:11:40)
Revealing mistake: When the German staff car comes into the market place to find no truck, watch as Dietrich hurls the melon - the SS guy in the front is obviously a dummy for this one shot. (01:29:40)

Continuity mistake: Several times during the fight in and around the truck the bars around the top of the cab come off and are miraculously back on again. (01:24:05)
Revealing mistake: When Indy and Marion are being sealed up in the Well of Souls, You can plainly see Marion counting down (she is mouthing the numbers) to the cue for her to scream as the Well is sealed. (01:12:20)
Factual error: When Marion is thrown into the pit of snakes and grabs the statue to prevent her fall, underneath her skirt she is wearing black spandex shorts. Shorts such as these did not exist in the 1930s time period of the film.
Revealing mistake: When Indy is running through the cave and finds the spy that took the artifact with spikes through him, he brushes up against the dummy and it shakes like rubber and the light bounces off it like rubber. (00:09:10)
Continuity mistake: At the beginning of the film, When Indy uses the whip to take the guides gun away, Satipo makes a weird face and starts to move away in amazement. The very next frame, in a wider shot, he is not finishing his movements, but on the contrary he is standing still, with a normal gesture, until a second later he starts to repeat the movement and looks from before.
Continuity mistake: When Indy is fighting the Nazis on the truck, one Nazi is thrown from the truck and is rolling the opposite direction of the truck. (01:23:30)

Factual error: During the travel to Nepal, "Thailand" is written on the map. The country has had this name only since 1939. This film takes place in 1936, when Thailand was called Siam. (00:23:20)