The Harry Potter movies may be ending, with the July 16 release of Deathly Hallows Part 2 – but the world's interest in Emma Watson, the 21-year-old British actress who has played Hermione Granger on screen since the franchise's start, will continue to grow, thanks to her gamine looks and her evolution as a fashion star. Here, see the young actress at her most chic, whether it's walking red carpets with her costars, hanging out at Glastonbury, or making commercials with Mario Testino.