Picasso was the first rock-star artist, whose wild visions gripped the public imagination and changed 20th-century art for ever. But his flamboyant personality divided opinion. Was he a playful genius, as some suggest, or a capricious and cruel misanthrope who left battered lives in his wake? On the eve of a new show in London, we speak to his closest friends and family in a bid to unravel the enigma
Pablo Picasso in his Cannes studio, 1956. Photograph: Arnold Newman/Getty Images
"Pica...