Avengers: Endgame’s Editor Came Up With One of the Best Lines of the Film

Avengers: Endgame is a movie almost entirely about providing a sense of payoff—to varying degrees of success—to 11 years of Marvel moviemaking. But one of its most powerful payoffs to the entire Marvel Cinematic Universe wasn’t actually in the film from the start. In fact, it didn’t even come from the Russo brothers…