In the Marvel Cinematic Universe, the thirdIron Man film typically well-regarded by the fans — but the film's biggest mistake was a deviation from the comics so drastic that it changed Tony Stark's character forever in the MCU. Perhaps the franchise hadn't yet found the successful formula upon which it would rely for later installments, or perhaps the film was edited drastically during production. But the ending of the film changed what Stan Lee fundamentally intended for the character.
In Iron
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