It took six weeks, but “Black Panther” has finally been unseated as the top film at the North American box office.

The monsters vs. robots science-fiction sequel “Pacific Rim: Uprising” dethroned the superhero sensation with $28 million in ticket sales, according to studio estimates released Sunday.

But the result for “Pacific Rim: Uprising,” a Universal Pictures-Legendary Entertainment release that cost $150 million to make, was soft – at least domestically.

Like the recently released “Tomb Raider,” its biggest business was in China, where “Pacific Rim: Uprising” debuted with $65 million for Legendary, which the Chinese conglomerate Wanda Group acquired in 2016.

And even though “Black Panther” slid to second place with $16.7 million in its sixth weekend, Ryan Coogler’s film notched another box-office milestone. It’s now the highest-grossing superhero film ever in North America, not accounting for inflation. The film’s $631 million in domestic ticket sales has surpassed the $623 million of 2012’s “The Avengers.” “Black Panther” also becomes the fifth highest grossing film of all-time, rising above “Star Wars: The Last Jedi.”

The record-breaking hit of “Black Panther” has been followed by a string of lackluster performers, including “Tomb Raider,” “A Wrinkle in Time” and “Red Sparrow.” “Pacific Rim: Uprising” may have taken down “Black Panther,” but a blockbuster heir still hasn’t been found. Next weekend, Steven Spielberg will try with his big-budget virtual-reality spectacle “Ready Player One.”

“Pacific Rim: Uprising” could point to better results abroad, where it grossed $122.5 million over the weekend.