Movies used to spend weeks and months in theatres building audiences. No more. That all important opening weekend box office pretty much defines whether or not a movie is a hit. “Over the years, America’s dream factory has sent thousands of different stories out into the world, but every weekend Hollywood itself endures exactly the same tale: One movie is crowned the box-office champ, another is tagged a big loser, and some of the city’s biggest actors and producers, watching years of work end in crashing commercial disappointment, reach for the Maalox.”