Viewers have been left disappointed by the ‘Joker’ sequel ‘Folie a Deux,’ which deliberately deconstructs the mythos of the first film, along with the idea that the Joker is someone to look up to.

“Joker: Folie à Deux” hit a sour note for some audiences. The highly anticipated “Joker” sequel, which hit theaters on Friday, is underwhelming at the box office, and for those who did see the movie, ...