For the third week in a row, Furious 7 took the top spot at the box office and made it look easy. Not even a trio of newcomers could slow down the latest entry in the crowd-pleasing action series, which has become the fastest film to reach $1 billion worldwide. On the domestic box office, it’s equally impressive. It’s a juggernaut. A cultural event. At the end of the day, Paul Blart: Mall Cop 2 may make some money, but it’s making that money in the shadow of a genuine phenomenon.