In the period when Hitler and his Nazi Party rose to prominence, Chaplin was becoming internationally popular. He was mobbed by fans on a 1931 trip to Berlin, which annoyed the Nazis. Resenting his style of comedy, they published a book titled "The Jews Are Looking at You" (1934), describing the comedian as "a disgusting Jewish acrobat" (although Chaplin was not Jewish). Ivor Montagu, a close friend of Chaplin, relates that he sent the comedian a copy of the book and always believed that Chaplin decided to retaliate with making "Dictator".