Other than the odd recasting of an actor or director walking away over "creative differences," Marvel Studios is known mostly for its drama on-screen and not off. However, a new book about the history of the Marvel Cinematic Universe reveals its most epic battle was fought for years behind the scenes between two powerful people. While it's not exactly a new revelation, the extent to how fierce and petty it was is laid out for the first time in context. If the MCU has an architect, it's current Chief Creative Officer Kevin Feige, who changed the way Marvel Studios did business.