No matter how controversial the first "Joker" film was, it was a financial success — it was the highest-grossing R-rated movie ever (until this year's "Deadpool & Wolverine") and made over $1 billion worldwide.

If you had told anyone in 2019 that the sequel to "Joker" would barely cross the $200 million threshold, they would not have believed you.

According to estimates by Variety, the film could lose its studio anywhere from $125 to $200 million.

To make matters worse, it also earned the rare "D" on CinemaScore, meaning that nobody saw it, and the people who did hated it.

The MCU is the most successful film franchise of all time, raking in billions of dollars for Disney. But the cracks started to show with "The Marvels," which had the lowest opening of any MCU movie at just $65 million.

Forbes reported the film lost a staggering $237 million, even though it wasn't actually as bad as some people on the internet would have you believe.

The biographical film about the life of boxer Muhammad Ali had a $107 million production cost that was raised to $118 million after director Michael Mann moved filming to Africa, according to Bomb Report.

Box Office Mojo estimates the film made just $87.8 million worldwide. Sony was reportedly on the hook for over $100 million when including marketing costs.

DreamWorks co-founder David Geffen has publicly stated the film, centering around a legendary sailor framed for stealing a sacred book, lost the studio $125 million, the Los Angeles Times reported.

The film, about the life of Alexander the Great, had a reported budget of $155 million. According to Bomb Report, the film's gross sank 65.2% in its second weekend and another 68.9% in week three. Overall, production company Intermedia posted a $29.4 million loss for the year.

Based on the beloved adventure novel by Jules Verne about traveling the world in 80 days, the film had an estimated budget of $110 million, but only made $72 million worldwide, according to Box Office Mojo.

The film is most notable now, perhaps, for being the last acting role of Arnold Schwarzenegger before he became the governor of California.

The film is about three top Navy fighter pilots tasked with manning a drone-like plane. It had a budget of $138 million and was directed by "The Fast and Furious" director Rob Cohen — so everyone had high expectations.

However, it lost at least $56 million due to box-office deficits, and likely even more after taking out movie theaters' cuts and marketing costs, according to Box Office Mojo.

The film follows a treasure hunter as he travels to Africa in search of a long-lost ship. It had a reported production cost of $160 million. The Los Angeles Times reported it lost the studio $78 million, and called it "one of the biggest financial flops in Hollywood history."

"Poseidon" is a remake of the original beloved film, 1972's "The Poseidon Adventure." The disaster movie about a sinking cruise ship had a budget of $160 million. After everything, it lost the studio $69 million, Business Insider previously reported.

The film centered around the biblical tale of Noah's ark, and it starred Steve Carell and Morgan Freeman. It had an estimated budget of $175 million and even became the most expensive comedy of all time, according to Reuters.

But, according to Bomb Report, the film lost one of its backers $50 million.

The film about a young orphan living in a train station starred young actors Asa Butterfield and Chloë Grace Moretz. It ended up going $80 million over budget, according to Bomb Report, and lost the studio $80 million — proving that not every Scorsese film is a box-office hit.

The superhero film about a test pilot who gets a powerful alien ring had an estimated budget of $200 million, but it barely broke even at the box office. Overall, the studio took a $75 million loss, according to Bomb Report.

At the time, superhero films were in the middle of a renaissance after movies like "Iron Man" and "The Dark Knight" had proven that comic-book movies had mass appeal. But, "Green Lantern's" failure shows that a built-in fan base doesn't always lead to success.

"Pan" had an estimated budget of $150 million, but its offensive casting of Rooney Mara as the Native American character Tiger Lily, its heavy reliance on CGI, and general disinterest in another "Peter Pan" film led the movie to box-office bomb status, The New York Times reported.

 The Hollywood Reporter predicted that the film "could see losses in the $130 million to $150 million range" back in 2015.

A sequel to the 2010 Tim Burton film "Alice in Wonderland," "Alice Through the Looking Glass" had an estimated budget of $170 million and ended up costing Disney an estimated $70 million — especially shocking, considering that the first film topped $1 billion.

The film follows the Big Friendly Giant as he befriends a young orphan Sophie, even though it goes against giant nature. It had an estimated budget of $140 million, and according to The Hollywood Reporter, "lost $90 million to $100 million for partners Disney, Spielberg's Amblin Entertainment and Participant Media."

It's one of the acclaimed director's biggest flops.

The film follows a young Arthur after the murder of his father and his quest to gain back the throne of Camelot. It had an estimated budget of $175 million and only grossed $148 million, according to Box Office Mojo. Forbes blamed the lack of movie stars, extensive re-shoots, and an inflated budget, among other things, for the film's reported $150 million loss.

DC's answer to Marvel's "Avengers" superhero team-up movie had an estimated budget of $300 million. Business Insider reported that the film could have cost Warner Bros. up to $100 million.

The mind-bending story of young Meg's journey across time and space to rescue her father from darkness had a reported budget of $103 million, and Yahoo Finance reported that Disney lost between $86 million and $186 million on the film.

The film follows a young Han Solo (played by Alden Ehrenreich), the most iconic space smuggler of all time, as he meets his future partner and best friend Chewbacca, future frenemy Lando Calrissian, and a heretofore unknown love interest Qi'ra.

It had an estimated budget of $275 million. Though the film made over $392 million worldwide, that's nothing when you compare it to the $2 billion gross of "The Force Awakens," and the $1 billion grosses of "The Last Jedi" and "The Rise of Skywalker."

The CGI-heavy movie about a tribe of cats called the Jellicles had an estimated budget of $95 million and a famously cursed production. Though "Cats" is a beloved musical and ran on Broadway for years, audiences didn't show the film version the same love. Deadline calculated losses at approximately $113.6 million.

The film about a doctor who can talk to animals had an estimated budget of $175 million and an all-star voice cast including Tom Holland, Emma Thompson, Rami Malek, Octavia Spencer, and more. That didn't stop Vulture from calling it "2020's first official mega-flop."

The Observer estimated that "Dolittle" needed to make $500 million to turn a profit and with a final gross of just half that, you can be sure that no one at Universal was pleased with those results.