Todd Phillips thinks that Joaquin Phoenix’s Joker would be a fan of Batman. Joker: Folie á Deux releases in United States theaters this coming October. The upcoming sequel is directed by Phillips and will see Phoenix reprise his role as the titular Joker.

Joker wrapped, Phillips knew he wanted to do more with Batman's archnemesis. Joker: Folie à Deux is a musical sequel, starring Joaquin Phoenix and Lady Gaga.

Bruce Wayne has not taken on the mantle of Batman in Gotham City in the Joker franchise, but director and co-writer Todd Phillips recently talked about what Joaquin Phoenix's Arthur Fleck would think about the Dark Knight if he was running around taking down criminals in Gotham.

Director Todd Phillips verifies what a headache working with Joaquin Phoenix was when making 'Joker: Folie a Deux.'

When Joker wrapped in 2019, Phillips knew he wanted to do more with the character. Joker: Folie à Deux picks up two years after the original, and features singing by Joaquin Phoenix and Lady Gaga.

That includes the Joker franchise, and its sequel Folie à Deux is the next upcoming DC movie heading to theaters. It's set in a unique timeline crafted by filmmaker Todd Phillips, who recently revealed how Joaquin Phoenix’s character would react to Batman.

Joaquin Phoenix's Joker is an adult while Batman is still just a child in Todd Phillips' films, but if the two were to ever meet, here's how it might play out.