Paolo Sorrentino’s extravagantly personal movie gives us all a sentimental education in this director’s boyhood and coming of age – or at any rate, what he now creatively remembers of it – in Naples in the 1980s, where everyone had gone collectively crazy for SSC Napoli’s new signing, footballing legend Diego Maradona. We watch as a family party explodes with joy around the TV when Maradona...