On November 22, former theater-camp mean girls and millennial gays will have something else to fight over when tickets are finally available for the long-awaited Wicked movie. Starring Cynthia Erivo and Ariana Grande, Universal Pictures’ adaptation of the Broadway megamusical will either be the cinematic event of the holiday season or a bloated CGI monstrosity, depending on how you felt about the trailer. But one thing...