If there's ever been a wine region worthy of its own separatist movement? Catalonia might be it.One of the world's greatest sparkling wine regions (Cava, and now Corpinnat)? Check. One of Spain's greatest single appellations for age-worthy reds (Priorat)? Check check. Exciting ancient local grape varieties to heighten the geek factor (Xarello! Sumoll! Más!)? Keep checking!