Other mistake: When Chozen is buying vegetables from the villagers, one of the weights from the scale is knocked onto the ground. Daniel picks it up and realises that its not a real weight and breaks it in half. If Chozen wanted to cheat the villagers when he weighed their vegetables, he would need weights that were heavier than normal, not lighter plastic ones. Lighter weights would mean that Chozen would need to add far more of the light weights to make any amount of vegetables balance out, therefore he would be paying more for the vegetables than they are worth.
Factual error: In the scene where Mr. Miyagi and Daniel arrive in a taxi at a construction site, the taxi is stopped by a U.S. Air Force airman first class. The airman asks, "Where you going, buddy?" Mr. Miyagi says, "Tomi village." The airman says, "Never heard of it! This is Kadena Air Base." He then calls out to an off-screen person, "Sarge! Tomi village?" The off-screen voice replies, "You're standing on it, corporal!" The U.S Air Force has never had the rank of corporal in its organization.
Continuity mistake: When Chozen hits Daniel in the stomach, on the bridge by the village, one of Chozen's friends kicks the drum under Daniel to the other side of him, but when the girl hurls the vegetable at Chozen, it is back where it originally was. Also, when the girl hurls the vegetable he looks over his shoulder to his left, yet in the closeup he is looking over his right shoulder. (00:55:25)
Continuity mistake: When Sato goes to see Miyagi, but he isn't there, Chozen destroys the dojo then tells his two friends to let Daniel go, and they throw him forward. His hands are not in the fighting stance, yet in the following shot he is now in his fighting stance with his hands at the ready. (01:15:25)
Factual error: After Miyagi and the kid have the conversation with the military man they drive off and round a corner. A scene is shown of the sea and very visible is a shot of "Chinaman's Hat" Island. A feature that if you have ever been to Oahu, Hawaii near Kualoa Point you would know is on the island of Oahu and not in Okinawa where the movie is supposed to take place. See Chinaman's hat at this site: http://www.hawaiiweb.com/oahu/sites_to_see/chinamans_hat.htm.
Continuity mistake: When Daniel goes sightseeing with the Japanese girl, they have a little running race to the castle. When they both stop running Daniel says "You cheated," and he is pointing at the girl with his right hand, but when the shot changes he is pointing with his left hand. (00:59:50)
Continuity mistake: When Daniel uses the Miyagi drum technique against Chozen at the end of the film, the third blow travels from Daniel's left to his right. So Chozen should falter back to his own left. But when the shot cuts back to over Daniel's shoulder, the blow sends Chozen to his right instead.
Continuity mistake: At the end, when lots of people are dancing in the castle, it cuts to a man banging the drums and the music stops. Miyagi and his lady friend are standing in front of the fountain in the middle and Daniel is to the left of the screen, but in the following shot Miyagi and his friend are right in front of Daniel. (01:37:40)
Continuity mistake: When Miyagi is showing Daniel the "Drum Technique" by the water, Miyagi sends the hook thing flying at Daniel. Daniel goes flying into the water and gets soaked. You can tell if you look at his shirt, it is stuck to his chest. He then climbs back up and a few seconds later, he is A LOT drier.
Continuity mistake: At the start, when Daniel and Miyagi are at the back of Miyagi's house, Miyagi walks up to the new wood housing. On the housing's ledge there is a pot for nails, a measuring tape, a knife and a small pot behind the nail pot. A few shots later, the measuring tape and knife have both vanished. (00:10:50 - 00:12:55)
Continuity mistake: When Mr. Miyagi is trying to capture a fly with his chopsticks he finally does, and the fly is captured about 2 inches from the end of the chopsticks. The tips of the chopsticks are crossed with the fly in the middle. When the camera cuts to the side angle while Daniel is driving up and before Mr. Miyagi releases the fly, the fly is now trapped at the very end of the chopsticks and the tips of the chopsticks are not crossed. (00:09:45)
Continuity mistake: Daniel is supposed to break six pieces of ice. We see the man putting the six pieces in the slots. The shot where Daniel is approaching the ice their are only four pieces of ice. We then see two shots with six pieces of ice. When Daniel finally breaks the ice there are once again only four pieces of ice in the rack. (01:07:30 - 01:08:25)