The final chapter of the Infinity Saga was directed by Anthony and Joe Russo from a screenplay by Christopher Markus and Stephen McFeely. The film cost $400 million to make and had an unprecedented opening weekend of $1.2 billion, and would eventually go on to gross $2.8 billion. It briefly became the highest-grossing film of all time until the 10th anniversary re-release of James Cameron’s Avatar pushed it to the 2nd highest grossing film of all time.
The final studio net profit is estimated at $890 million.
The box office run was so legendary, it has its’ own Wikipedia article!
With all the tripe released between then and now, it feels like well over a decade ago.