'The Karate Kid' Star Ralph Macchio On Possible 'Rocky' Crossover

Before starring in the YouTube hit, "Cobra Kai," Ralph Macchio said no to every idea sent to him on how to continue "The Karate Kid" franchise. He said the worst idea he heard was when an executive wanted to do a movie where the kids of Daniel LaRusso and Rocky Balboa would team up. "It was very off the cuff, but he said, 'Hey, what if Rocky Balboa and LaRusso had kids and they are related in some way?" Macchio told Business Insider. Visit BusinessInsider.com for more stories.