These are the craziest "Joker" (2019) fan theories, from the film directed by Todd Phillips and starring Joaquin Phoenix as the titular Clown Prince of Crime. Sure, it’s an origin story, but this film raises more questions than it answers. For this list, we’ll be looking at some of the most over-the-top, elaborate and compelling fan theories following the release of the 2019 film, “Joker”. We’ll be taking a look at fan theories that pertain to both the events of the film, and those that attempt to tie this Joker into a wider world of DC characters or which theorize about what the future might hold for this version of the Joker.