In February 2014, while promoting his World War Two film, The Monuments Men, Hollywood A-List actor George Clooney declared that Britain should send the Elgin Marbles back to Greece. Despite claiming they came from the Pantheon in Rome rather than the Parthenon in Athens (and also that they had been taken by Lord "Eljin"), he felt that returning them was now appropriate. This was fiercely controversial territory. However, once the furore had died down, most people wrote it off as a kooky PR stunt. Until last week, when it emerged that George Clooney’s new wife, Amal Clooney, a lawyer specialising...