Continuity mistake: When Daniel is striking Chozen during their fight at the end it's right left right left. Yet at one point during a shot of Daniel's back he strikes Chozen twice with his open left hand when it should've been left right like the rest of the time.
Continuity mistake: When Chozen moves at Mr. Myagi with the spear, when Mr. Myagi grabs the spear the first time, he places it between the 2 pieces of wood, but then when Chozen picks it up to attack him a second time, the spear is to the left of the 2 pieces of wood, in the ground.
Revealing mistake: In the fighting scene when Chozen has Daniel choking on the spear, before Myagi appears, the first person was standing on the deck to the left and throwing plants through the hut, but then Myagi comes and all of a sudden, he comes at him from the right. Somehow he made it from the left of Myagi to the right of him without anyone seeing him.
Other mistake: When Daniel was using the drum technique, he was blocking with his left hand and hitting with his right hand. So how was Chozen's right side of his face bruised if Daniel never hit him on that side of his face?
Suggested correction: The twisting motion of this technique allows Daniel to use both hands to block and strike depending on which side his opponent used. If Chozen throws a left hand, Daniel would block with his left and strike with his right. If Chozen throws a right hand, Daniel would block with his right and strike with his left.
Revealing mistake: When Daniel and Kumiko are kissing and the storm is coming in, all a sudden the wind starts blowing hard. They act like they it was sudden. As a storm chaser for 28 years and weatherman, there is no way they would not have seen the storm coming even in the 80s. They would have known for days and also, it wouldn't go from calm to total destruction in a few seconds. Especially with a typhoon. They would have had days to prepare.
Factual error: There is no Bon-festival in Okinawa. Okinawa has a traditional festival called Eisa festival.
Suggested correction: There is an Obon festival. It's very different from what's shown in the movie, and is Japanese versus Okinawan, but that's not an 'error'.