I was thinking of what a potential potter sequel saga first entry would do
I'm giving it Deathly Hallows part 2 gross inflation adjusted +15% attendance + adding on extra for a stronger china
$550 million domestic
$1.5 billion overseas + $300 million china = $1.8 billion
So I have it coming out to a $2.3-2.4 Billion run worldwide
This is if it released in the current market