This is the reason why 'Joker 2' has been rated R.

The film Joker: Folie à Deux is one of the most anticipated movie events of the year, and given the high violence content of its predecessor, it's no wonder that the sequel, starring Joaquin Phoenix and Lady Gaga, has received an R (or "adults only") rating from the Motion Picture Association, it was reported Wednesday. The MPA's daily newsletter, explains that the reasons are due to "some strong violence, language throughout, some sexuality, and brief full nudity" throughout the film. The features suggest a reduction in explicit content unlike 2019's Joker, whose categorization is "strong bloody violence, disturbing behavior, brief sexual language and imagery."

Details about the plot will remain a mystery until April 9, 2024, when Warner Bros. will release the first official teaser, where for the first time there will be a glimpse of Gaga playing Harley Quinn. The cast also includes Zazie Beetz , Catherine Keener, Jacob Lofland , Steve Coogan and Brendan Gleeson in supporting roles.

The first poster of the film hows Arthur Fleck alongside Harley Quinn in a sensual dance. Interestingly, the title of the feature, Folie à Deux, alludes to a medical condition in which two people share the same delusion, which seems to be an apt representation of their love.

The ending of the original film shows Arthur Fleck (played by Joaquin Phoenix) assuming his identity as the Joker. After a series of tumultuous events including murders and riots in Gotham City, Arthur finds himself at the center of a popular revolt that makes him a symbol for those marginalized by society. Eventually, he gets to Arkham Asylum, where he will meet his next partner, as narrated in other versions of the story.