One reason Marvel Studios' superhero movies are so enjoyable is the shared “Marvel Cinematic Universe” they've been building since the original Iron Man. Just as in the comics, the movies offer a world where multiple heroes coexist and interact (either to punch each other in the face or chow down on shawarma). Fox clearly wants to get in on that action too. Last week we learned that comics scribe Mark Millar has been brought on board as a creative consultant for Fox as it expands its X-Men franchise and works to reboot Fantastic Four. The goal is to develop a similar sort of shared superhero film universe.