At the age of 17, Blake Lively stepped into a shared pair of big screen blue jeans and, along with her fellow co-stars America Ferrera, Alexis Bledel and Amber Tamblyn, became a rising star with the teen set after starring in her first major role, “The Sisterhood of the Traveling Pants” (2005). Perhaps it was fate that the blonde California-bred actress, who was born in the morning and napping on a film set later that day, would one day end up in front of the camera. Following her breakout role in “Sisterhood” (2005), she put an academic path aside and finally succumbed to a family tradition,