It’s an Oscar tradition: a serious political speech pierces the bubble of glamour and self-congratulation. Warring responses ensue. Some proclaim the speech an example of artists at their culture-shifting best; others an egotistical usurpation of an otherwise celebratory night. Then everyone moves on. Yet I suspect that the impact of Jonathan Glazer’s time-stopping speech at last Sunday’s Academy Awards will be significantly more lasting, with its meaning and import analyzed for many years to come. Glazer was accepting the award for best international film for The Zone of Interest, which is inspired by the real life of Rudolf Höss, commandant...