What does it mean for someone or something to be Hungarian? That was the far-reaching question that people grappled with in Hungary in the wake of the losses and transformation brought by World War I. Because the period also saw the rise of cinema, audiences, filmmakers, critics, and officials often looked at films with an eye to that question, too: Did the Hungary seen on screen represent the Hungary they knew from everyday life? And crucially did the major role played by Jewish Hungarians in the film industry make the sector and its creations somehow Jewish rather than Hungarian? Jews, it...