I don't know how in the world I missed it the first time it was shown, but I just watched the special "making the universe" that was used to set up Agents of Shield. It made me appreciate the wonder of what the Marvel Cinematic Universe represents even more. What immediately stood out was how everyone was legitimately excited for the prospect. I mean, here you have a story of how Jon Favreau, Gwyenth Paltrow and RDJ were all sitting in an office crying because they were so excited over the first Iron Man, and how it turned everyone into comic nerds. I think Marvel Studios deserves the success that they have achieved. Clark Gregg had to be the funniest actor though. Seeing him tell the story of how he would show up to do Coulson and how he never knew if his character would continue, but always having it carry over to the next movie in bigger and bigger ways was classic.