Joker, released in 2019, proved to be a critical and commercial success as fans flocked to see a fresh incarnation of the most famous villain in comic book history.
Directed by Todd Phillips and starring Joaquin Phoenix, the latter won the Academy Award for Best Actor for his performance as Arthur Fleck, whose fight against poverty and the elite of Gotham City saw him develop into the Joker.
A sequel has been in the works for a while, and Phillips confirmed that the script had been completed via a social media post of Phoenix having a read of the story.
The only thing known about the sequel is that it is titled Joker: Folie à Deux.
The title refers to “a delusion or mental illness shared by two people in close association”.
Fans, now aware of this meaning, are naturally speculating as to who the second person could be in this situation.
Who could join Phoenix?
Interestingly, even before the title was confirmed, Willem Dafoe fantasised a pitch to GQ which curiously ties in to what the sequel will feature.
“There is something interesting about, like, if there was a Joker imposter, he said.
"So it would be possible to have not duelling Jokers but someone that says to be the Joker that isn't the Joker.
And that kind of opens up the possibility of an interesting story, particularly if you had Joaquin Phoenix's Joker and then you had someone who was either imitating or riffing off what he did.
"I fantasised about that. But other than that I am not talking to anybody , you're the first one.”