Avengers: Every Single Deleted Scene From Endgame & Infinity War
11. Battle With The Sea Monster
Last year, the Russos revealed that Nebula and War Machine's venture to Morag initially involved Black Widow and Hawkeye (who in the final film headed off to Vormir instead) and that the foursome's quest would have lead to a major action set piece in which the planet would have essentially been underwater.
Stephen McFeely followed that up during the watch party by confirming that it this was indeed what the first draft of the film looked like, adding that it would have involved a battle with a giant sea monster too.
As awesome as it sounds, future drafts removed the sequence because all of that action resulted in little emotion.