More than 40 years after the making of "Halloween," John Carpenter is still best known for that game-changing film, and the franchise that keeps going and going. But with films like "They Live," "The Thing" and "Christine," he compiled an original body of work in and out of the Hollywood system. We chatted in 1986, when he came to Chicago to talk up "Big Trouble in Little China," his kung fu comedy, starring his frequent leading man, Kurt Russell.