The director of "Avengers 4" named the real cost of the project

Joe Russo, director of Marvel Comics adaptations, clarified the total cost of "Avengers 3: Infinity War" and "Avengers 4: The Final Destiny". According to him, it was truly impressive because of the scale of the project.
I don't know if those numbers were ever accurate, but in the case of "Avengers: The Final" or "Infinity War," each of those films were worth over $500 million. So that's the kind of incredible amounts being spent on these movies. And you have a responsibility, if you have a conscience, to somehow return these investments to the people who gave you that money," he commented. The director did not specify whether he was referring only to the production budget, or we are talking about the cost of promotion.
Recall that, in any case, the Russo brothers were able to fulfill all their obligations to investors. The last two parts of the "Avengers" proved to be one of the most box-office projects in the history of cinema. The third series has earned at the box office a little over two billion dollars, and the fourth with its 2.79 billion dollars and some time was the most successful film in world cinema. Later "Avatar" regained this title.