Joaquin Phoenix and Lady Gaga's 'Joker: Folie à Deux' Debuts to Mixed Reviews

The sequel to 2019's 'Joker' introduces musical elements and explores the complex relationship between Arthur Fleck and Harley Quinn.

Critics are divided on the film's blend of musical sequences and dark themes.
Lady Gaga's performance as Harley Quinn has been praised, though some feel she is underutilized.
Joaquin Phoenix's commitment to the role, including significant weight loss, has been a focal point.
Director Todd Phillips frequently rewrote scenes with Phoenix and Gaga during production.
The film received an 11-minute standing ovation at its Venice International Film Festival premiere.