This image released by Warner Bros. Pictures shows Joaquin Phoenix, foreground center, and Brendan Gleeson, background center, in a scene from "Joker: Folie à Deux." (Niko Tavernise/Warner Bros. Pictures via AP)

This image released by Warner Bros. Pictures shows Joaquin Phoenix, left, and Lady Gaga in a scene from "Joker: Folie à Deux." (Niko Tavernise/Warner Bros. Pictures via AP)

This image released by Warner Bros. Pictures shows Joaquin Phoenix, left, and Lady Gaga in a scene from "Joker: Folie à Deux." (Niko Tavernise/Warner Bros. Pictures via AP)