Imbued with a natural calm and effusive charm that masks an inner turmoil, actress Rose Byrne has tried to keep a check on reality in an otherwise unrealistic world. A sparkling brunette with doe eyes from the land Down Under, Byrne has fast become a rising star in the United States after a successful career in her native Australia. Once hailed as Audrey Hepburn with a darker edge, Byrne has used her natural talent to secure challenging roles on projects both large and small. Her pivotal role as Briseis in the epic blockbuster “Troy” (2004)—her first major exposure to American audiences—was