The Marvel Cinematic Universe is truly one of the greatest modern-day achievements in blockbuster cinema entertainment. The 23 films have all dominated the box office, albeit to varying degrees, and the Marvel characters have established enormous pop culture relevance, in a world formerly occupied by their DC rivals. Think back to just a decade ago, and it was all about Batman and Superman. Nowadays, Iron Man and his fellow Avengers have completely taken over. Sure, Warner Bros. has been desperately striving to change that for the past few years....