Dosumentary on the international wine trade in France, California, Italy, and New York, about winemakers both great and small. While old-timer Aime Guibert, of tiny Mas de Daumas-Gassac, pronounces that wine must be made by a poet, high-powered consultant Michel Rolland circles the globe ensuring that wineries make lots of money. Nossiter meets the Mondavi family, one of the wine world's largest conglomerates; the de Montille family of Burgundy, in which a daughter has chosen not to work with her father and brother but instead with a competitor; the Staglins, who financed their own high-priced vineyard in the Napa Valley; and critics James Suckling and Robert Parker, whose words can make or break a vintage.