The festival's new rules prohibits "voluminous outfits, in particular those with a large train, that hinder the proper flow of traffic of guests

Heidi Klum didn’t comply with the Cannes Film Festival’s new dress code, hitting the opening ceremony in a billowy floral Elie Saab gown with a dramatic floor-grazing train — which violated one of the regulations that just went into effect.

The daughters of Prince Charles of Bourbon-Two Sicilies, Duke of Castro, and his wife, Princess Camilla, enjoyed an evening among film stars as the festival opened this week.

After the Cannes Film Festival 2025 introduced strict new dress code rules, banning extravagant outfits, long trails, and revealing attire, comedian Vir Das poked fun at the changes, joining others in critiquing the move.

Model Bella Hadid has become the queen of Cannes in recent years thanks to her jaw-dropping looks, which have included a slit-up-to-there red Alexandre Vauthier gown from 2016 that now makes her “embarrassed” as well as the striking Schiaparelli couture gown she wore in 2021 that eschewed a top in favor of gold “lungs.”

The model swung in the opposite direction of her skin-baring fashion following the festival's new fashion protocols

As celebrities descended on the Cannes Film Festival that's scheduled to begin Tuesday and run through May 24, organizers updated the dress code to say that "For decency reasons, nudity is prohibited on the red carpet, as well as in any other area of the festival."