Cannes is this year becoming a counterblast to ageism. Italian director Marco Bellocchio, at the age of 83 – and almost 60 years after he first came to prominence with his 1965 movie Fists in the Pocket – has created a gripping, heartbreaking true-political crime story from the pages of history. It is a full-tilt melodrama with the passionate vehemence of Victor Hugo or Charles Dickens, which lays bare an ugly formative episode of Europe’s Catholic church: an affair of antisemitism and child abuse. It is based on the true story of Edgardo Mortara, a young Jewish child in Bologna...