This chronicle of 2012 is a slice of what happened during a watershed year for the Hollywood movie industry. It's not the whole story, but it's a mosaic of what went on, and why, and of where things are heading. What changed in one Hollywood year to produce a record-breaking box office after two years of decline? How can the Sundance Festival influence a film's fate, as it did for Beasts of the Southern Wild and Searching for Sugar Man, which...