By CJ Tiernan The Marvel Cinematic Universe (MCU) was one of the largest undertakings a studio has ever taken. At the time of my publishing this list, there are 37 movies that have been released so far, earning more than 32 billion dollars at the box office (Achoo! Sorry, that number is nothing to sneeze at). It is kind of big deal. This particular list is focused on the beginning stages of the MCU (Phases 1 through 3), ranging from the first movie (Iron Man) to the epic conc