Here's a place to condense the conversation about real or perceived plotholes in Avengers: Endgame. Talk about the things that either didn't make sense to you or the things that you think Endgame done goofed and see if others can make it all make sense!
I'm creating this now because CBR just put up an article listing the biggest plotholes in the movie. Do you agree with what CBR is saying, or can you earn your No-Prize by explaining how any of these things were NOT mistakes?
https://www.cbr.com/avengers-endgame-plot-holes/
(1) THE TIME HEIST
(2) THE VORMIR SACRIFICEOriginally Posted by CBR
(3) TEAM THANOS' TRIP TO THE FUTUREJust before the Avengers go on their temporal mission, they divide into teams and do a breakdown of where to find all the Infinity Stones. They detail how to extract them, because they know they shouldn't do anything to alter the timestream. Yet, when they get to Vormir, Hawkeye and Black Widow somehow don't know they need a sacrifice for the Soul Stone.
It's a pretty dumb moment because Nebula knew Thanos killed Gamora to obtain it in Infinity War, so she should have given the duo a heads up. It appears Nebula forgot to tell them for the sake of plot convenience, all so the Avengers could dramatically duke it out to see who draws the short straw.
(4) NEBULA'S PARADOXICAL DEATHThe first plot hole here revolves around evil Nebula infiltrating the Avengers in the present. When the Avengers snap the "dusted" back to life, evil Nebula uses the time machine to open a portal allowing Thanos' legion to come to the future. However, the quantum tunnel Tony Stark created doesn't work like that: He made it clear the only objects they could pull from the timestream must have the mysterious wrist devices, which are basically temporal GPS locators or tags for his time machine to pull.
The second plot hole arises in the finale, when Tony uses his tech gauntlet to snap Thanos' army away. Killing them here means they don't exist in the 2014 timeline anymore, thus nullifying everything from Guardians of the Galaxy onwards. Once more, without Thanos and his forces there, history's changed drastically and the snap wouldn't ever happen. The main timeline is further affected when Gamora is also taken from 2014 and doesn't return to her timeline.
(5) THANOS USING THE STARK GAUNTLETWhen evil Nebula tries to steal the Stark Gauntlet for the Mad Titan, she's confronted by the redeemed Nebula and Gamora in the present. However, in a very emotional standoff, the good Nebula shoots her past self in the chest, killing her.
It's a basic time travel rule being broken here, because by killing her past self, future Nebula shouldn't exist. Yet, once again for plot convenience, future Nebula's alive and well and goes on to help take down the rest of Thanos' troops. Also, killing Nebula from 2014 affects everything that leads to the snap, thus adding to the series of paradoxes, wherein the very thing Endgame is based on wouldn't happen at all.
So, can any of this be explained away, or are they all really plot holes? What other plot holes did YOU find?In the finale, after winning a brawl with Captain Marvel, Thanos puts on the Stark Gauntlet, but the Russo brothers apparently forgot the rules they created for this. This gauntlet isn't designed to fit the Mad Titan, it's nanotech is programmed to fit Avengers only. That's why the Hulk wields it to snap the deceased back to life and also why Tony dons it to snap away Thanos' forces. Thanos shouldn't be able to force his hand into it or else it'd break
Another plot hole arises when Thanos wears it and snaps his fingers, not realizing the stones are missing. Upon rewatching the scene, Thanos looks at the gauntlet before he snaps, so he should have seen the stones absent. More importantly, his mind and body are connected to them, so once Stark took them back, the Mad Titan should have felt the link being severed and knew he couldn't perform another snap.