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!
They should have stopped here, but instead they decided we absolutely needed the adventures of the B and C teams for another decade. Disney as a corporation is incapable of restraint in the face of shareholder expectation, so the story will always lose out to the suits demanding they just make the Avengers, but with more money.