Iron Man 2 was the reason for Marvel Studios' changing their approach to movie making. The film's reviews didn't live up to the reception towards the first Iron Man film, which caused a lot of changes for the studio.
Marvel Studios decided that moving forward, they would take a break from making sequel films just for the sake of making a sequel and instead focus on the overarching narrative. Iron Man 2 actually did do all of this. It fleshed out Tony's story along with his familial history,
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