In a competition between the DC and Marvel Comic Universe, Marvel has reigned supreme in the last decade with projects on both the big and small screen. With X-Men and The Avengers pulling their substantial weight in big budget films and Netflix becoming the home of Jessica Jones, Luke Cage, and Daredevil, and with even more projects in development, it seems the Marvel Universe has become a ceaseless machine. With so much interest in the Marvel Universe, there has been plenty of discussion of its characters, plots, and potential crossovers but even with die-hard fans there are some secrets that have mostly stayed hidden. Here are 10 Marvel Cinematic Universe Secrets You Didn’t Know About. If you like our list, let us know and don’t forget to subscribe to the Screen Rant channel.