Sequins sparkled, trains swept the red carpet and diamonds flashed in every direction as celebrities stepped out for the 79th Cannes Film Festival in France.Hollywood heavyweights and screen legends dressed to the nines on the French Riviera, delivering elegance with every step and camera flash.Demi Moore stunned in multiple head-turning looks, including a red gown featuring oversized sculptural shoulders and a body-hugging silhouette. She acces…