Columbia taps Chris Murphy to write script Columbia Pictures is back in the dojo with a new version of the 1984 hit "The Karate Kid," which has been refashioned as a star vehicle for Jaden Smith. The film will be produced by Jerry Weintraub (who launched the original franchise) and Overbrook Entertainment's James Lassiter, Will Smith and Ken Stovitz. Will Smith, who is the 10-year-old actor's father, co-starred alongside Jaden in his feature debut, "The Pursuit of Happyness," which Overbro