During the Weimar Republic, Siegfried Kracauer established himself as a trenchant theorist of film, culture, and modernity, and he is now considered one of the key thinkers of the twentieth century. When he arrived in Manhattan aboard a crowded refugee ship in 1941, however, he was virtually unknown in the United States and had yet to write his best-known books, From Caligari to Hitler and Theory of Film. Johannes von Moltke details...