Joker Folie à Deux: Joaquin Phoenix's Joker, Lady Gaga's Harley Quinn dance in first poster, trailer to release on...

Joker: Folie à Deux, the sequel to the 2019 blockbuster Joker, will release in theatres on October 4. The musical psychological thriller is directed by Todd Phillips and stars Joaquin Phoenix and Lady Gaga as Joker and Harley Quinn, respectively.