Lady Gaga is cast as a unique version of Harley Quinn in "Joker: Folie à Deux," a sequel to Todd Phillips' "Joker." Joaquin Phoenix is the Joker.
"She's so good in it, you guys. She's going to blow your mind," casting director Francine Maisler said at the Karlovy Vary International Film Festival, according to an IndieWire report.
Gaga previously starred in House of Gucci, Sin City: A Dame to Kill For, A Star is Born (for which she won an Oscar for Best Original Song), and Machete Kills.
The sequel will also star Steve Coogan, Zazie Beetz, Catherine Keener, and Brendan Gleeson.
The official trailer for "Joker: Folie à Deux" broke records with 167 million views in 24 hours and became the most talked-about video on YouTube during its premiere night, surpassing engagement numbers of "Barbie."
In contrast to the dark tone of the original Joker movie, Joker: Folie à Deux will include flashy musical numbers featuring well-known tunes and potentially cover songs by Gaga.
The film is expected to have an adult rating for violence, explicit language, full nudity, and sexual content.
Rumors indicate the film will debut at the Venice Film Festival. It is expected to hit theaters in October.
Margot Robbie, who previously played Harley Quinn, supports Gaga and the idea of passing on the role to other actresses.
Gaga clarified her version of Harley Quinn is unique to the movie and different from Robbie's previous portrayal.
The musician remained in character on set, and did not respond to calls unless called "Lee."
With an estimated budget of around $200 million, "Joker: Folie à Deux" is one of the most anticipated Warner Bros. releases of recent years.
Joker: Folie à Deux will be both written and directed by Todd Phillips.
Sources: NY Post, CinePOP, Tribune, ComingSoon, US Magazine, Uproxx, The News, Rolling Stone, Collider, CinemaBlend, Tom's Guide, Variety, NME, Zougla, Interia.
This article was written in collaboration with Generative AI news company Alchemiq.