User blog comment:ADour/First The Amazing Spider-Man 2 trailer debuts!/@comment-1895174-20131205215421/@comment-2031194-20131207043617

Wow, I bet you're totally right about the "Age of". It's funny though, because Avengers: Age of Ultron is not based on the comic story, while the movie that isn't using "Age of" IS based off of a comic story with "Age of" in the name.