When Joe Russo - one of the directors for Avengers: Infinity War - was answering questions online, he revealed that delicate themes will be used in the storytelling, and to connect with audiences.

When Joe Russo was answering questions on Sino Weibo, a microblogging website, he came across the most important approach to storytelling him and his brother used for Avengers: Infinity War.In one large quote, he mentioned how important it is to imply themes such as 'pain' and 'sacrifice' in the storytelling.

"For us the best stories have stakes. Characters have to make sacrifices. To really, really feel the true emotion and the hero’s journey they have to go through trials and those trials could cost them something.

He adds that they have gone beyond it being just a 'storytelling technique', seemingly trying to connect with audiences to what it really means to become a hero...

"So, for us, its very important that the heroes feel pain and that they make sacrifices because I think that, not only is it great storytelling, but it also is inspiring and I think we need a lot of inspiration in this world right now. So, for us, I don’t know if we can ever get you to accept it, but I promise you this: we’ll do our damnedest to tell you the best story possible, and what you do with it from there is up to you.”

It seems like Joe and Anthony Russo have crafted a deeply emotional superhero story, and with the stakes higher than ever in Avengers: Infinity War, it looks like our heroes will make some costly sacrifices.