Box office: ‘Joker: Folie à Deux’ bombs with $40 million opening even with Lady Gaga Gold Derby‘Joker’ Box Office Shocker: ‘Folie à Deux’ Bombs With $40M Opening After Receiving D CinemaScore Yahoo EntertainmentFrancis Ford Coppola Says Joker 2 Director Todd Phillips Has “Always Been One Step Ahead Of The Audience” imdbJoker 2 Ends With a Twist So Shocking Even Some Fans Are Going to Hate It Slate$200 Million ‘Joker’ Sequel Is a Box Office Bust The Wall Street Journal