For many people, the holiday season wouldn't be complete without a trip to see "The Nutcracker." The ballet made its debut in San Francisco 70 years ago. For the last 15 years, San Francisco Ballet principal dancer Lorena Feijoo has had the starring roles as Snow Queen and Sugar Plum Fairy. Feijoo grew up dancing with the National Ballet of Cuba. We catch up with her during rehearsals at the San Francisco Ballet Studios.