Few people could legitimately subtitle their life story “vintner, prisoner, soldier, spy”. But when he died a year ago, aged 102, Peter Sichel had been all these things. Now his extraordinary life – in which he fled the Nazis , joined the army, spied for the CIA and made Blue Nun’s Liebfraumilch with its distinctive bottle a household name in the 1970s and 80s – has been made into a cinema film, The Last Spy. His wine merchant daughter Bettina says: “He was definitely good at keeping secrets