Joker: Folie à Deux’s Ending Came From a Scrapped Idea for the First Film

<img width="1500" height="1000" src="https://gizmodo.com/app/uploads/2024/10/joker-folie-a-deux-ending-arthur-arrest.jpg" alt="Joker Folie A Deux Ending Arthur Arrest">Christopher Nolan was purportedly the reason it didn't make it in—and it was no longer a problem by the time the Joker sequel was coming around.

https://gizmodo.com/joker-folie-a-deux-ending-spoilers-christopher-nolan-heath-ledger-2000508662