Variety: Box office isn’t typically the biggest contributor to the bottom lines of media giants like Time Warner, 21st Century Fox, Viacom and Disney. But in an era when normal patterns of advertising spending are in massive flux, execs at those companies may feel more warmly toward Hollywood than they do Madison Avenue, even though film success has long been more unpredictable. “You know you are in trouble when the only positive media data point in the quarter is the U.S. box office.”