Avengers: Endgame
Avengers: Endgame is where the epic battle for the Infinity Gauntlet finally comes to an end, and arguably its most shocking moment is when one of the franchise's most important characters, Iron-Man, is killed. This film sets itself apart from others because it wasn't afraid to take risks with the loss of integral characters, and it wraps up the Avengers story in a realistic way.
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