In his memoir My Father, Charlie Chaplin, Chaplin's son Charles Jr. described his father as being haunted by the similarities in background between him and Hitler; they were born four days apart in April 1889, and both had risen to their present heights from poverty.
Some of the signs in the shop windows of the ghetto in the film are written in Esperanto, a language which Hitler condemned as a Jewish plot to internationalize and destroy German culture, perhaps because its founder was a Polish Jew [REF].