Marvel movies have often deviated from the comic books to give viewers a more streamlined version of the heroes or villains from the source material. For example, Thor: Ragnarok made Hela the daughter of Odin, even though she is actually Loki's daughter in the comic books. It's not a huge surprise then that Thanos' motivations will differ greatly from the comics in Avengers: Infinity War.
It's just a shame that a certain character may not be appearing because of said alteration.
During an interview with Coming Soon the writers of Infinity War, Christopher Markus, and Stephen McFeely revealed that Death would not be appearing in the film. As if that wasn't enough, Thanos won't be collecting the Infinity Stones to please her either, though they are still trying to get to the cosmic character's core.
Markus and McFeely stated that audience members won't really empathize with Thanos if he is going to destroy the universe because he loves Death. While some might argue that Thanos' motivations are semi-relatable since some people would do anything for their love, destroying the universe is stretching a bit.
Here's what the two writers had to say about Death:
"At the very beginning, just because it's such a focal point of the comics, we talked about it, but I think pretty quickly… it is not something that brings you closer to his motivation. It's not something where the average moviegoer says, "Now I can kinda empathize with him because he's in love with Death!" But I think we took that passion that he has… he really is in love with Death in the comics! He's a lovelorn, kinda sad little fella. We wanted to maintain that level of emotion on his part, just redirected."
Avengers: Infinity War hits theaters this week, on April 27.