At an turning point in the film Joker, Arthur Fleck (Joaquin Phoenix), is assaulted on the subway.  Due to a disability that causes him to laugh randomly, some fellow riders described as “Wall Street types” decide to rough him up. Because Arthur still wore the clown outfit he used as part of his work, one of the assailants tried to sing “Send in the Clowns” as a prelude to the onslaught. That scene propels the action to the next level. Arthur Fleck, The Joker, in the corrupt and failing city of Gotham and with no intention of doing so, becomes the name and face of  what is best described as an anarchist movement [Note: The Joker, in his madness, may incline toward nihilism or absurdism