Character details surrounding the new movie from DC, JOKER. Outside of the continuity of the current DC universe, JOKER will start Joaquin Phoenix and is directed by Todd Phillips (The Hangover). Movie plot details aren't clear yet, but rumors surrounding JOKER suggest that we learn more about Arthur Fleck who turned into the Clown Prince of Crime. Here is a video of all of some of the best actors who have played The Joker.