The wonderful, improbable Palme d’Or triumph of Hirokazu Kore-eda’s ‘Shoplifters’ at Cannes

On the last day of every Cannes Film Festival, word begins to leak out about which filmmakers from the competition have been called back for the closing-night awards ceremony. Many of us already knew, going into Saturday night’s show, that Pawel Pawlikowski’s “Cold War,” Alice Rohrwacher’s “Happy…