You can listen to Charlie Chaplin's speech from "The Great Dictator" at http://www.upworthy.com/the-one-speech-every-human-being-on-earth-should-hear.
It includes many visuals to back up his words.
I'm a bit pessimistic about it's effectiveness. Chaplin made the movie in 1940 as a counter to Hitler, and Hitler got worse. Let's hope at least a few no-shows have their minds changed by this speech and show up at election time.