How real-life British-American author Christopher Isherwood and his German boyfriend Heinz met and fell in love during the 1930s and the rise of Nazism.How real-life British-American author Christopher Isherwood and his German boyfriend Heinz met and fell in love during the 1930s and the rise of Nazism.How real-life British-American author Christopher Isherwood and his German boyfriend Heinz met and fell in love during the 1930s and the rise of Nazism.