LOS ANGELES — “Kingdom of the Planet of the Apes” reigned over the weekend box office with a $56.5 million North American opening, according to studio estimates Sunday, giving a needed surge to an uncertain season in theaters.The film from 20th Century Studios and Disney DIS, -0.01$81.5 million debut of “Dune: Part Two” in early March and the $58.3 million domestic opening of “Kung Fu Panda 4” a wee ...