This animated film has been a box office phenomenon in China. As an English-language version opens in the United States, we provide an explainer.

Chinese film “Ne Zha 2” became the highest-grossing animated movie of all time earlier this year, mostly because of its massive popularity in China.

A rebellious young boy, Ne Zha, is feared by the gods and born to mortal parents with wild, uncontrolled powers. Now he's faced with an ancient force intent on destroying humanity, he must grow up to become the hero the world needs.