Watch Soap2Day. The film tells the cultural story of Berlin during the Weimar Republic through interviews with a number of persons who were involved in literature, film, art, and music during the period. It includes interviews with Christopher Isherwood, Louise Brooks, Lotte Eisner, Elisabeth Bergner, Francis Lederer, Carl Zuckmayer, Gregor Piatigorsky, Claudio Arrau, Rudolf Kolisch, Mischa Spoliansky, Herbert Bayer, Mrs. Walter Gropius, and Arthur Koestler.