Visible crew/equipment: In the scene when Miyagi and Daniel are about to get into Miyagi's truck and drive to the Cobra Kai Dojo, Daniel is yawning and to the bottom right of him the boom mike can be seen for a few seconds.
The Karate Kid (1984)
1 visible crew/equipment mistake
Directed by: John G. Avildsen
Starring: Elisabeth Shue, Ralph Macchio, Pat Morita, Martin Kove
Continuity mistake: We first see from the inside of the door (and therefore backwards) the instructions that Mr. Miyagi leaves for Daniel to paint the house. In the next shot we see the same note from the outside - from Daniel's viewpoint. Clearly they are two different notes. The left & right arrows switch directions, the drawings of the hands change, the position of Miyagi's signature changes, and the placement of some of the exclamation points changes.
Trivia: Daryl Vidal created the crane kick for the movie and was Pat Morita's stunt double during the scene where Miyagi is perfoming the crane kick on the stumps.
More questions & answers from The Karate Kid
Answer: Yes.
And why was this scene deleted? It would explain how Daniel was able to defeat Dutch by scoring only one point.