Joker sequel "Folie à Deux" features Joaquin Phoenix, Lady Gaga, and a musical exploration of Arthur Fleck and Harley Quinn's relationship.

Todd Phillips' "Joker: Folie à Deux," released on October 4, is a musical sequel featuring Joaquin Phoenix and Lady Gaga. The film explores the relationship between Arthur Fleck and Harley Quinn, incorporating a diverse soundtrack with both classic and original songs. Phillips highlights the importance of music in expressing the characters' emotions. The film has received mixed reviews but is noted for its unique blend of music and storytelling.