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Despite these efforts, Mackey's casting and the movie’s storyline faced pushback. Critics argued that the narrative was not set up for Mackey’s character to become Captain America, as the storyline had been "set up" for it to go in another direction. The surprise rewrite of the ending of Avengers: Endgame to give the mantle to Falcon was unanticipated by the actors, signaling a major leap in the franchise’s narrative crafted specifically for this new iteration.