Pakistan, May 26 -- Cara Delevingne stunned at the Cannes Film Festival this year, which marked her first time being at the prestigious festival for a movie red carpet. However, she didn't follow the dress code. "I did hear about [the new dress code], but I don't even think I understand it," Delevingne, 32, admitted with a laugh. The festival prohibited dresses with long trains and nude looks. The website FAQs note that "nudity is prohibited on the red carpet, as well as in any other area of the festival," for "decency reasons." "Voluminous outfits, in particular those with a large train, that hinder the proper flow of traffic of guests and complicate seating in the theatre are not permitted," they added. Not paying attention to the code ...