It's insane Barbie is already at 500m world wide and it isn't even the second weekend yet. This movie is gonna land in the top ten all time.
boxoffice
Will be interested to see how this changes with Oppenheimer
I think it'll be about $260m. Just a guess, but that's between 3-4x which is pretty normal for Nolan. So I'd put money down on between Little Mermaid and Ant-Man 3.
What does the multiplier mean?
It means that's how much a movie has made domestically compared to it's domestic opening weekend. The bigger the multiplier, the better "legs" a movie has, and generally means audiences really liked it but didn't necessarily rush out to see it (really depends on the movie). Basically it means that it continued to make a good amount of money for a long time.
So if you take Ant-Man Quantumania's domestic total which is $214,504,909, and divide it by it's opening weekend $106,109,650, you get 2.021 which rounded down is 2x. I hope this helps :)