Liz Taylor was right in her now famous Tweet about Michael Jackson’s This Is It. My Lincoln center program about MJ’s music videos (Keep Moving: Michael Jackson’s Video Art at the Walter Reade Theater, Nov. 22) was planned before This Is It, but it ought to confirm Dame Liz’s enthusiasm. It’s designed to show film enthusiasts who wonder: “What happened to the movie musical?” or “Why wasn’t Michael a film star?” Despite race, class and puritanical obstacles, Jackson advanced the movie-musical genre his own way—working with the best, trusting his instinct and raising the promo film to an art form every time out.