Trivia: When Delores is reassembling herself, you can see she is missing the ring finger of her left hand. If you recall, Beetlejuice had this same finger adorned with a ring in his pocket when he attempted to marry Lydia in the first film.
Trivia: Vinnie Jones claimed he was offered a cameo role in this film reprising his role as Juggernaut from X-Men: The Last Stand, but turned it down as he did not like the process of having his costume put on.
Trivia: Lee Majors and Heather Thomas, who portrayed Colt Seavers and Jody Banks in the original television series, have cameos as the police officers who arrest Gail and Tom during the mid-credit scene.
Trivia: When Lacey Chabert turns on the TV for Jack, you see Lindsay Lohan onscreen. Lacey says, "Hmm, I went to school with a girl that looks like that." Lacey Chabert and Lindsay Lohan were in the Mean Girls movie together and were in school in that movie. (00:20:10)
Trivia: SPOILERS: Director Todd Phillips has defended the controversial ending, in which it is revealed that Arthur is not the Joker who would go on to fight Batman when he is stabbed and killed by another inmate, who then carves a smile onto his face. Phillips noted that the two films were called "Joker," and not "THE Joker," and stated that Arthur was the person who inspired the real Joker—presumably the inmate who killed him. However, this explanation was poorly received by fans, who felt duped.
Trivia: Following the release of "Sonic the Hedgehog 2", co-star Jim Carrey stated that he was considering retiring from acting, as he felt he had "done enough" in the film industry and was becoming somewhat burned out. However, he eventually agreed to star in this film because he loves playing the evil-genius Dr. Robotnik. Carrey also laughingly admitted that the huge paycheck he got was one of the deciding factors, especially because he "buys a lot of stuff."
Trivia: James Paxton, Bill Paxton's son, has a cameo as the angry hotel guest during the rodeo sequence.
Trivia: A fan created a poster of this film emulating the design of the musical's iconic poster. Upon seeing this image, Cynthia Erivo, who plays Elphaba, bizarrely called it the most offensive thing she had ever seen.
Trivia: This is the second film in which Adrien Brody won the Academy Award for Best Actor for portraying a Holocaust survivor, following The Pianist. His acceptance speech was also the longest in the ceremony's history, clocking in at 5 minutes and 40 seconds.
Trivia: This film's trailer was infamous for a line of dialogue (that didn't appear in the actual film) in which Cassie woodenly says, "He was in the Amazon with my mom when she was researching spiders, right before she died." John Mulaney sarcastically compared the line at the 2024 Oscars ceremony to memorable quotes from Jaws and When Harry Met Sally.
Trivia: This film will actually have the shortest amount of time elapsed between installments, releasing around 2 years and 4 months after Ghostbusters: Afterlife. Ghostbusters 2 released 5 years after the original film, the 2016 film released 27 years after Ghostbusters 2, and Ghostbusters: Afterlife released 5 years after the 2016 film.
Trivia: Michael Bond, the author of the Paddington book series, appears in this movie as a stamp.
Trivia: The first time Maika Monroe saw Nicolas Cage in make-up as Longlegs, her heart rate jumped up to over 170 bpm, around 100 above her resting heart rate.
Trivia: Chip, who plays the role of Alfie (Ellie's cat), is the pet cat of Claudia Schiffer, the wife of the film's director, Matthew Vaughn.
Trivia: Willem Dafoe previously played Max Schreck (and by extension, Count Orlok) in Shadow of the Vampire, which is a fictionalized telling of the filming of the 1922 Nosferatu film.