‘Oz’ again tops the box office

“Oz the Great and Powerful” is living up to its name at the box office. Walt Disney’s 3-D blockbuster led all films for the second week in a row, taking in $42.2 million according to studio estimates Sunday. Sam Raimi’s prequel to the L. Frank Baum classic “The Wonderful Wizard of Oz” also took in $46.6 million overseas, leading to a two-week worldwide total of $281.8 million. In a winter of underperforming releases, that makes “Oz” easily the biggest hit of 2013 so far. “Boy, did we need it,” said Paul Dergarabedian, box-office analyst for Hollywood.com. “There have been a lot of box-office casualties this year.