The Chinese government may be concerned about a platform for filmmaker Chloe Zhao, whose “Nomadland” is a front-runner for best picture and director. While the Frances McDormand-starring movie focuses on itinerant workers in the modern American West, it comes from a Chinese-born director who once made comments critical of China. “I think if she says something about China it will be interesting, and if she doesn’t that will be interesting for an entirely different reason,” said Aynne Kokas, a University of Virginia professor and author of “Hollywood Made In China,” about their relationship. “Th...