Spoiler alert! This article contains spoilers for Joker: Folie a Deux. Joker: Folie a Deux takes audiences deeper into the bleak and disturbing universe of Arthur Fleck, offering a fresh, albeit grim interpretation of familiar DC characters. While firmly nestled within the DC Comics framework, this film operates outside the main DC Universe timeline, categorizing itself under the DC Elseworlds banner. This allows for a more unrestrained exploration of DC’s more infamous characters.