It was only a forty-minute foreign film, but it sparked a legal confrontation that has left its mark on America for more than half a century. Roberto Rossellini's Il Miracolo (The Miracle) is deceptively simple: a demented peasant woman is seduced by a stranger she believes to be Saint Joseph, is socially ostracized for becoming pregnant out of wedlock, but is finally redeemed through motherhood. Although initially approved by state censors...