VIDEO : Marvel Writers Admit How They Felt Writing The End Of The Avengers

Screenwriters Christopher Markus and Stephen McFeely admitted it was difficult writing ?Avengers: Endgame.? McFeely said: "We were nervous at that moment because it was such a big project.? According to Comicbook.com, McFeely said ?it would be the biggest puzzle that we ever would put together as writers.? Yet he said the scariness of it might be a good thing because if they were successful, it would be ?amazing.? Markus said it was time consuming and painful but that it was a once in a lifetime opportunity.