Danny Boyle, the director of Trainspotting, 28 Days Later and Millions collaborates with Simon Beaufoy, the screenwriter of The Full Monty and Miss Pettigrew Lives for a Day surely we’re in for some all-British shenanigans. But no, this is a social epic set in modern India, when Bombay became Mumbai and the new techno-wealth began to contrast ever more sharply with the crushing, enduring poverty of the masses