They were '80s rivals in the movie "The Karate Kid." Now Ralph Macchio and William Zabka have become "brothers in arms" on Netflix's "Cobra Kai."

"Karate Kid" and "Cobra Kai" stars Ralph Macchio and William Zabka were among the actors to attend the "Cobra Kai" Season 6, Part 3 premiere Wednesday.

Ralph Macchio, the beloved actor known for his role as Daniel LaRusso in The Karate Kid, and his wife, Phyllis Fierro, have been married for 38 years. With divorce rates in the U.S. ranging from 40% to 50%, that's already impressive. When you consider that he’s a Hollywood actor, it’s even more rare.