<正>THE Chinese box office rocketed on the release of So Young,directorial debut of actress Vicki Zhao.With a whopping RMB 45 million in receipts,the movie shattered opening day box office records for a non-3D Chinese-language film.By day 16 the lowbudget rom-com had grossed RMB 600 million. China’s movie box office surpassed RMB 900 million during the International Labor Day week(April 29 to May 5).Iron Man 3 earned RMB 396