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Of course, even MCU films that divided the fan base still have their strengths. Thor: The Dark World has several memorable one-liners from Tom Hiddleston’s Loki, and Iron Man 2 benefits from the introduction of Scarlett Johansson’s Black Widow. And another one of the MCU’s most hotly debated sequels also boasts a major upside: it has one of the greatest boss battles. Looking back, the 2013 film is underappreciated in that regard.
Iron Man 3 Is Divisive, But It Has One of the MCU’s Best Final Battles

The MCU as we know it wouldn’t exist without Iron Man, but both of the 2008 film’s sequels are divisive additions to the MCU. Iron Man 2 tends to be more lambasted, while Iron Man 3 has both admirers and critics. The complaints about the latter usually involve the film’s Mandarin twist, which takes Ben Kingsley’s villain in a totally different direction than his Marvel Comics counterpart. With The Mandarin revealed to be a puppet, and Aldrich Killian (Guy Pearce) becoming the true Big Bad, it’s not surprising diehard fans of the source material were left disappointed.
After all, many viewers waited years for The Mandarin’s MCU debut, only to see the character treated like a punchline. And while handling of the film’s villain may be the crux of Iron Man 3‘s controversy, there are other common criticisms, including ones aimed at its pacing and overall plot. Whatever the issues with the movie, it does have one thing going for it: an excellent final boss battle. On the heels of the Killian reveal, Tony (Robert Downey Jr.) and Rhodey (Don Cheadle) are thrust into a fight against the villain and his Extremis soldiers.









