Nancy Tartaglione International Box Office Editor/Senior ContributorThe controversy surrounding Disney’s live-action update on 1998 animated classic Mulan is heating up just as the film is about to be released in China. In recent days, backlash outside the Middle Kingdom has increased over a line in the movie’s credits roll that reportedly thanks the Xinjiang authorities, including one entity that is on the U.S.-sanctions list, for their cooperation in making Mulan.