The Incomparable’s Summer of Marvel begins with a look back at 2008’s “Iron Man” and 2010’s “Iron Man 2.” How unlikely was it that a B-list Marvel Comics superhero nobody had ever heard of would end up kicking off one of the most successful film franchises of all time? How did perfect casting and a light touch with the subject matter pay off in this unlikely success? And how does the sequel balance being a second “Iron Man” film and the launch of a much larger franchise?
