Clashes over the screening of a controversial, award-winning Hong Kong coming-of-age documentary at an Italian film festival have escalated, with the director accusing the secondary school at the centre of the dispute of “blatantly lying” about the arrangement for the showing.Acclaimed filmmaker Mabel Cheung Yuen-ting slammed Ying Wa Girls’ School over the documentary’s screening in Italy, expressing shock and “intolerable” disappointment after her alma mater distanced itself from the...