Folie à Deux trailer is out, previewing the upcoming sequel to 2019’s hit film starring Joaquin Phoenix. What happens in the Joker: Folie à Deux trailer? The new trailer highlights more of the relationship between Arthur Fleck (Phoenix) and Harley Quinn (Lady Gaga),

Folie à Deux trailer trips the light fantastic by showering the film with quotes praising the musically charged sequel.

Joaquin Phoenix’s Joker will make his big screen return alongside Lady Gaga. Not long after Joker director Todd Phillips confirmed he would be writing and directing a sequel, Gaga confirmed her casting by sharing a video of her and Phoenix’s silhouettes dancing via Instagram.

Folie a Deux final trailer begins with the focus on Lady Gaga 's Harley Quinn, who tells Joker that she's been told that he is a bad influence on her. Some scenes include Harley walking up the steps of the courthouse with an angry mob shouting from the streets,

Folie à Deux does have quite a few scenes featuring music, Lady Gaga, who plays Harley Quinn, doesn't think of it as a musical at all.

Joker and Harley Quinn are sharing their madness with Gotham City as mayhem reigns in the trial of Arthur Fleck.

In a new featurette for Joker: Folie à Deux, director Todd Philips and stars Lady Gaga and Joaquin Phoneix discuss Gaga's role in the film. "She easily slipped into that world. It's not like she's trying to be Harley Quinn from the comic books. She's Lee in this world," Phillips shared.

The Joker and his Harley Quinn are sticking together until they end, and that sentiment is clear in a new teaser clip for Joker: Folie à Deux that was released by IMDb on Wednesday (Sept. 18). In the minute-long clip,

Joker: Folie a Deux brings back Phoenix as Arthur Fleck/Joker, who is now on trial for murder stemming back to events from the first film. Lady Gaga joins the cast as Harley, while Brendan Gleeson, Steve Coogan, and Catherine Keener also have roles. Zazie Beetz returns from the original Joker movie as well.