The more we learn about the making of Avengers: Endgame, the more its incredible box office success feels warranted. The new highest-grossing movie of all time combined a decade’s worth of world-building and character development into one culminating conclusion, but there were a ton of elements of the film that were developed, filmed, and ultimately cut from the release. Such as a more in-depth exploration of Thanos’ backstory.
Article source: https://www.cinemablend.com/news/2485807/youll-never-unsee-young-thanos-design-for-avengers-endgame