Chloé Zhao's Oscar-nominated drama has quietly made $70 million worldwide in a slow burn rollout rarely seen today. In Britain, the highest-grossing film among the year’s BAFTA nominees is not “Sinners” or “Marty Supreme” or “One Battle After Another,” it’s “ Hamnet ,” Chloé Zhao’s heartrending Shakespearean drama that quietly has become an international box office hit. Since opening in the U.S. over the Thanksgiving holiday, “Hamnet” has risen to $70.7 million worldwide at the box office, with