The movie contained a ton of wild plot twists, and security infamously tight.
The Russo Brothers did the impossible with Avengers: Endgame, telling a complicated narrative through the MCU’s history and servicing nearly every major character in the process.
One actor recently posted a page of the script, which shows just how redacted it was during filming.
This was especially true for the movie’s script, as actors were largely only given their specific pages.