How much does the movie karate kid cost?

It's impossible to give you an exact cost for the movie "The Karate Kid" without knowing what you mean by "cost". Do you mean:

* The budget of the movie? The 1984 "The Karate Kid" had a budget of around $8 million.

* The cost of a ticket to see the movie? That depends on the theater, location, and date.

* The cost to buy a copy of the movie? You can find the movie on various streaming services, buy a DVD or Blu-ray, or rent it digitally. The price will vary based on the platform and whether you want to purchase or rent.

Please clarify your question so I can give you a more accurate answer.