"Avengers: Endgame" is now the highest-grossing film of all time.
On Sunday, Disney said the film had earned $2.79 billion at the global box office, topping "Avatar's" record of $2.7897 billion.
"Endgame" has been in theaters for just 87 days. "Avatar," for comparison, ran for 234 days during its first run, and was then rereleased in 2010.
"Endgame" had its own rerelease, of sorts, in June. Marvel Studios began showing a new theatrical release of the film with a special tribute to Stan Lee, a deleted scene from "Endgame" and a teaser for "Spider-Man: Far From Home" at the end of the credits.
The hope was to drive buzz and lure moviegoers back to theaters to see the film again. At the time, "Endgame" was still $40 million behind "Avatar" and there were questions about whether the film would be able to overtake the record before the end of the summer.
"'Avatar' was a tenacious king of the box office mountain warding off all challengers for about a decade and against seemingly insurmountable odds, 'Endgame' did whatever it took to take the crown," Paul Dergarabedian, senior media analyst at Comscore said.
On Saturday, Kevin Feige, the head of Marvel Studios announced to a crowd of thousands in Hall H at San Diego Comic-Con that the film was within a few days of overtaking "Avatar."
"A huge congratulations to the Marvel Studios and Walt Disney Studios teams, and thank you to the fans around the world who lifted 'Avengers: Endgame' to these historic heights," Alan Horn, co-chairman and chief creative officer of The Walt Disney Studios, said in a statement Saturday.
"Of course, even with the passage of a decade, the impact of James Cameron's 'Avatar' remains as powerful as ever, and the astonishing achievements of both of these films are ongoing proof of the power of movies to move people and bring them together in a shared experience," he said. "The talented filmmakers behind these worlds have much more in store, and we look forward to the future of both the Marvel Cinematic Universe and Pandora."
It should be noted that with the acquisition of Fox earlier this year, Disney now owns "Avatar" and its upcoming slate of four sequels.