Box Office: 'Guardians 2' Repeats No. 1, 'King Arthur' Is Summer's First Big Flop

“Guardians of the Galaxy Vol. 2” continued its box office reign this weekend, while “King Arthur: Legend of the Sword” is the summer season’s first major flop. Disney and Marvel’s super hero sequel followed up its $145 million opening weekend domestically with an additional $66 million from 4,347 locations. That’s a 55% drop, which is...