 Trimborn suggests that Chaplin decided to proceed with making "The Great Dictator" after viewing Riefenstahl's film.Hynkel's rally speech near the beginning of the film, delivered in German-sounding gibberish, is a caricature of Hitler's oratory style, which Chaplin also studied carefully in newsreels.The film was directed by Chaplin (with his half-brother Wheeler Dryden as assistant director), and written and produced by Chaplin.