Sony’s faith-based drama “War Room” has launched with $600,000 at 1,017 locations in Thursdsay night preview screenings while Zac Efron’s dance music-romance “We Are Your Friends” generated a mild $175,000. Warner Bros’ “We Are Your Friends” title expands to 2,333 locations Friday. It comes with Universal’s “Straight Outta Compton” expected top the box office for...