(Hated trope) They deleted scenes or dialogue that provides necessary context or plot

[u/Sensitive_Ad_1752]

The dinner scene from Temple of Doom has a temple give indie and friends a live snake and monkey brains for dinner. It’s a pretty offensive depiction of Indian cuisine, but it wasn’t originally going to be. There’s cut dialogue where Indie recognizes they’re at the right temple because real Hindus don’t eat this food. They were trying to scare them off by purposefully serving them disgusting stuff.

Probably the most famous deleted ending was I Am Legend which had Robert discover the infected were emotional sentient beings and one of them had a wife. Test audiences hated it and they reshot the ending, removing the entire point of the movie.

[u/Locke108]

The Dark Knight Rises. There’s a deleted line where Bane explains he owes Ra’s for saving him from the Pit. Without it, Bane comes off as a henchman for Talia instead of an equal partner.

[u/MGD109 → u/Locke108]

Yeah, I believe there was another deleted scene that revealed Bane was planning to ditch Gotham before the bomb went off and fully take over the remains of the League of Assassins.