NEW YORK (CNN/Money) – Darth Vader, Batman and Tom Cruise couldn't do it. Can a bespectacled teenage wizard, a not-so-cowardly lion and an enormous primate lift Hollywood out of its funk? According to figures from Exhibitor Relations Co., a movie industry tracking firm, box office grosses are down 7.3 percent so far this year and attendance at movie theaters is off 10.1 percent. [More]