Plot hole: Mola Ram has his men knock over a vat of water in a last ditch effort to kill our heroes. First of all the vat can't be that big if it can be knocked down with a few sledgehammers. Secondly, for the amount of water that chases Indy and co. down the vat would have to be big enough to fill the room it's in, which obviously it's not. Third, Indy and co. travel through several large caverns during the mine cart chase, caverns that could easily swallow up any of the water flowing through the tunnels so there shouldn't be any water left to catch up to Indy by the time they stop.
Revealing mistake: When the water floods the mine, some shots of the 3 heroes are an obvious composite of their blue screened image over a set. Problem is, when Indy tells the two to run towards a tunnel on the right with a log blocking the way, Indy and Shorty run through the log as if they were ghosts.Sacha
Continuity mistake: At Club Obi Wan, Indy reminds Lao Che that Kao Kan tried to get Nurhachi without payment, and when Kao Kan raises his hand we see the gauze wrapped around his palm with a strip from his thumb area going diagonally down to his wrist, but in the next shot the gauze strip is wrapped diagonally from the opposite direction.Super Grover
Visible crew/equipment: While clinging to the hanging bridge, just as Indy tries to grab Mola Ram's foot in the closeup we can see Indy's red harness and the wire cable protruding from his shirt. Then after Mola Ram orders his archers to shoot, when Short Round and Willie are shouting at Indy we can see a bit of Shorty's safety cable protruding from his shirt, and it's seen again after Mola Ram falls onto Indy, when Willie and Shorty are shouting once more.Super Grover
Continuity mistake: After Short Round snaps Indy out of his trance, when the Thuggee continues to lower Willie we see in her closeup that the flowers in her hair and the flower garland around her neck are already shriveled and blackened, but in her next closeup the flowers are back to being vibrant and fresh.Super Grover
Revealing mistake: During the mine cart scene, after Indy notices that the track cuts out, just as the mine cart flies over the expanse there's a vertical wire at the back of the cart, leading up to the top of the screen, and a horizontal wire at the front of the cart, leading toward the right side of the screen. Additionally, when the mine cart lands on the other track keep your eye on the top edge of the screen as something dips into view, but it's pulled back up immediately, right before the shot cuts away to Mola Ram. The wires and the mysterious object can be seen when viewed on Amazon Prime, but they seem to have been edited out of the DVD (2008 version) I own.Super Grover
Continuity mistake: During the mine cart scene, right after Indy strikes the overhead metal bin, the next wideshot of the Thuggee goons is a flipped shot, note the stripe direction on their turbans and their cart's brake has switched sides. Then another shot with a view facing the front of Indy's cart looking back towards the Thuggee cart, note the brake at the front of Indy's cart has switched sides.Super Grover
Continuity mistake: During the melee at Club Obi Wan, Lao Che's goons toss Indy onto the dish cart which has a horizontal metal bar between two of its legs over the wheels, but in the closeup as Indy tries to grab the antidote vial, the metal bar has vanished, but it reappears when it crashes into the bandstand.Super Grover