There’s another iteration coming to theaters this year, so the original Karate Kid hits Blu-ray on May 11, which could, and I’m just wildly speculating here, lead to a nationwide epidemic of adolescent leg-sweeping in the final month of school. Among the Blu-ray add-ons is “Blu-Pop,” a picture-in-picture bonus feature that includes pop-up interviews, production trivia and other factoids, anecdotes from the actors and martial arts information. Preview it by clicking here.