Avengers: Infinity War screenwriters Christopher Markus and Stephen McFeely had to make some very difficult decisions when crafting the epic movie.
As for the decision behind the dark ending of Infinity War, Christopher Markus and Stephen McFeely wanted there to be a feeling of closure.
It’s very clear that there are going to be some major questions that need to be answered in Avengers 4, which McFeely and Christopher Markus say will be bigger and better than Infinity War.
You can read the rest of the interview with Stephen McFeely and Christopher Markus at The Hollywood Reporter.