Revealing mistake: When Indy and Willie jump out of the Obi Wan Nightclub, they fall through several awnings, the idea being that they will break the characters' fall. All well and good. But, if you look very carefully, you can see small taped-up cut marks which the crew made so the stunt men (and women) could effortlessly glide though the awnings.
Continuity mistake: When Indy, Shorty and Willie are looking at the ritual from the "balcony" in the cave, they take a look at the big skull on the wall. The artifact stones aren't placed in the skull. In the next shot the stones are there. After a few seconds the camera turns and the stones aren't there again. Some minutes later some of the bad guys bring them and put them in the skull.
Continuity mistake: When Lao Che's goons toss Indiana onto the dish cart, in the next shot just as Indy notices the rolling vial on the floor and reaches out to it, at the top left of the screen we see broken dishes and broken remnants of the band's podium lying on the floor, but the problem is the goons haven't yet pushed Indy's cart into the podium, which happens three shots later.Super Grover
Continuity mistake: During the mine cart chase, in the first wideshot of Shorty being pulled between the two carts where we see the lava under Shorty, this is a flipped shot. Note Indy's ripped sleeve is at his left side instead of his right, and the stripe on the Thuggee's turban is the opposite direction than it should be.Super Grover
Continuity mistake: After the pilots have jumped from the plane Willie shows Indy the empty cockpit, and in the shot of the front windshield note the view outside and the gauges, then after Indy nervously repeats "fuel" a few times there's another shot of the front windshield which is a flipped shot.Super Grover
Continuity mistake: During the escape from the mine, Indy has to slide along on a rope to catch his companion's cart. Whilst hanging from the rope the shot switches from in front to behind a number of times. Depending on the shot, Indy switches from barely hanging on to having the rope grasped tightly next to him. (01:34:45)
Visible crew/equipment: When Indy appears at the entrance of the mining caves to free the enslaved children, he punches out one of the guards and he goes flying in the air and across the gravel. You can see two suspension wires attached to the actor to drag him back through the dirt. (01:27:45)Lynette Carrington