Popsugar Fashion Celebrity Style Princess Diana Cannes Film Festival Dresses Princess Diana's Cannes Dress Was Bluer Than the Sky and as Whimsical as a Dream 5 May, 2018 by Morgane Le Caer 1 Shares View On One Page Photo 1 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 For her first appearance on the Cannes Film Festival red carpet, Diana wore a puffy Catherine Walker dress with a double-breasted white blazer. Previous Next Start Slideshow Celebrity StyleCatherine WalkerCannes Film FestivalAll AnglesThe British RoyalsDressesRed CarpetThe RoyalsPrincess DianaNostalgia