At just 19 years old, Hayden Panettiere has already established herself as one of Hollywood’s hardest-working actresses.  “Heroes” keeps her busy with a shooting schedule that covers about eight months out of the year, yet she’s also pursuing a movie career.  So how does the “I Love You Beth Cooper” star manage to balance the two? (CLICK ON THE MEDIA BAR TO HEAR HAYDEN PANETTIERE)