Changing Stages on PBS

Conclusion. In “The Law of Gravity,” host Richard Eyre explores challenges facing 21st-century theater, and charts developments that should thrust theater forward. But first he looks at why such spectacular “pop operas” as “The Phantom of the Opera,” “Les Miserables” and “Miss Saigon” have dominated recent commercial theater. Eyre also interviews Julie Taymor, the experimental director of the “The Lion King”; and Tony Kushner, whose “Angels in America” has “the breadth and depth of Shakespeare.” And he profiles French dramatic theorist Antonin Artaud (1897-1948), whose accomplishment was “to transform theater from an entertainment to an act of communion.”