With the re-release tomorrow of High Society - Grace's swan song before she retired from Hollywood and married Rainier - a new generation is being introduced to the last of the legendary Hollywood goddesses. Ironically, High Society, a 1956 musical version of The Philadelphia Story, is not her best film (Rear Window and To Catch a Thief compete to qualify). However, her performance as wilful heiress Tracy Lord, torn between two lovers - Frank Sinatra and Bing Crosby - highlights exactly why Grace Kelly remains relevant today, and shows what current so-called stars, pretenders to her throne, could learn from her.