There was so much about this movie that didn’t work, for so many reasons. This is how I imagine it went.
Executive: Hey, hows it going?
Director: Great, we’ve wrapped principal photography. We’ve only got 6 hours of usable footage but
Executive: 6 hours?!?
Director: Yeah but it’s okay because
Executive: We’d better make it two movies
Director: Umm
Executive: Yeah, we’ll make it two movies so we don’t have to waste any of that footage. We’ll use it all.
Director: UMMM
This should have been one movie. Or, alternatively, at least half of the scenes in this movie should have been cut. But there were also really important scenes they didn’t bother shooting so I guess maybe it could have been two movies if they’d bothered doing it well.
Here’s some examples.
The opening scene was entirely pointless and should have been cut for the sake of effective storytelling. Everybody saw the ship at the end of Thor 3. People have been imagining Thanos attacking the Asgardian ship for more than a year. You can’t compete against imagination and you shouldn’t even try; the movie should have opened with the Guardians of the Galaxy responding to the distress call, finding everybody dead except Thor.
Wakanda shouldn’t have been in this movie. It added nothing and as-is, this movie only tainted it. But really most of the Scarlet Witch/Vision scenes were unnecessary, didn’t even develop the characters and ended up going nowhere. They spent so much of the movie building up the relationship between those two characters and how reluctant Wanda was to do what was necessary, but you only needed three scenes to show that: the first when Vision looked human, the second when they talked about destroying the mind stone, and the last when Wanda does it. Everything else was pointless, including the entire trip to Wakanda. And Wanda is abruptly killed so who even cares? We don’t get to see her live with any kind of remorse over what she was willing to do. It’s a non-event that the characters aren’t even going to remember after the next movie anyway.
Thor’s return was squandered on a ****ty boring fight. Thor and Rabbit shouldn’t have returned until the climax (meaning the real climax, not the fake one they put in this movie when they split it into two).
They only ever explain the civilian impact through dialog. “The world is on fire!” says some congressman. But is it, though? They don’t show that. They don’t even say why it is on fire; we’d only seen Thanos’s minions fighting with Iron Man on a single New York street. Even if the destruction was catastrophic it’s still just New York, and they didn’t show anything happening anywhere else or offer any suggestion for why Thanos would have attacked anywhere else on earth.
And like I said, when Thanos killed half of all life, all we saw was a bunch of superheroes and Wakandan soldiers die. These were people already engaged in a pitched battle and willing to give up their lives for a cause. They should have shown civilians die. They didn’t have a problem showing New York skyscrapers getting dropped on dudes in the first one, so I don’t think it’s much to ask to have a pan around some shots of normal people turning into ash. Maybe it would make Thanos seem almost as ruthless as we’re supposed to think he is??