At a point of the movie Arthur Fleck says "I used to think that my life was a tragedy, but now I realize, it's a comedy." It's a paraphrasing of Charles Chaplin's quote who once said: "Life is a tragedy when seen in close-up, but a comedy in long-shot."Chaplin also makes an appearance in a viewing of 'Modern Times' for the elite of Gotham City whilst the city is blazing outside by riots.