This Spring Festival season, YOLO by Jia Ling, Hi, Mom s director, has emerged as the reigning champion at the Chinese box office, garnering a staggering 3.23 billion yuan ($450 million) by Saturday afternoon, according to data from film platform Beacon. The film is also likely to launch concerts, which haven t been officially announced yet, according to domestic media reports. Amid all the hype, the film has contributed to a craze for sports and fitness among a vast audience nationwide.