Joker: Folie à Deux is off to a rough start at the box office.

Todd Phillips’ R-rated sequel, starring Joaquin Phoenix as the Joker and Lady Gaga as Harley Quinn, earned a lower-than-expected $20 million on Friday (Oct. 4), including $7 million in previews, according to The Hollywood Reporter. Rival studios project that the Warner Bros. film will open below $50 million.

Contributing to the troubled box office numbers is Joker 2‘s dismal CinemaScore from audiences. The musical film received a failing D grade, marking the first time in history that a Hollywood comic book movie received such a low score, THR reports.

“For a movie running two-and-a-quarter hours, Folie à Deux feels narratively a little thin and at times dull,” The Hollywood Reporter‘s chief film critic David Rooney wrote following the movie’s world premiere at the Venice Film Festival in September.

Heading into the opening weekend, Joker: Folie à Deux — the sequel to 2019’s Oscar-winning Joker — was expected to earn between $50 million and $60 million. The original film debuted significantly higher on its opening weekend, bringing in $96.2 million and receiving a B+ CinemaScore. The first Joker went on to make just over $1 billion at the global box office.

Joker 2 follows Phoenix’s return as Arthur Fleck (aka the Joker), who is now confined in Arkham Asylum. There, he meets Gaga’s Harleen “Lee” Quinzel, and they form a powerfully chaotic bond with the goal of causing mayhem across Gotham City. 

In addition to her acting role in the film, Gaga recorded an entire Joker-themed album, titled Harlequin, in which she channels her character on a series of classic covers and a few originals. The surprise companion project, released ahead of Joker 2 on Sept. 27, was recorded alongside the sessions for the superstar’s upcoming as-yet-untitled seventh studio album. Her new set is scheduled for release in February, with a first single dropping in October.