Monday's 17-minute IMAX preview sets the stage for the August 1st release. Story by Matt Cummings and Zak Sousa Marvel Studios has quickly become the most talked-about entity in film, generating a steady buzz and great movies since Iron Man premiered nearly 6 years ago. A world filled with Captain America , Thor , and The Hulk was just what a tired movie industry needed, and moviegoers agreed, flooding the theaters as 2012 brought us the ultimate superhero mash-up The Avengers . But that was Phase One, and Phase Two is off and running with a few more bumps in the road than predicted. For every Captain America: The Winter Solider - now the country's #1 grossing domestic film - there's the recent departure of Ant-man helmer Edgar Wright and news that a team of writers have been brought in to perform on-scene triage of the script. And even with the most difficult year in Marvel Studio's history since the late 1990's - when it sold X-Men and Spider-m