Movie box office is down about 6 percent this year. But that doesn’t mean the movie business is down overall. “Yes, in an age of hundreds of cable channels, video games and other distractions, the domestic box office so far this year is down about 6 percent from the same time period in 2004, and off from 2003 and 2002 levels. But the money flowing into the coffers of movie studios is greater than ever.”