The rules add: “The festival welcoming teams will be obligated to prohibit red carpet access to anyone not respecting these rules.”

This prohibition was not stated in previous years, and has been included in a “festival-goers’ charter” outlining expected behaviour.

Red carpets are shown on TV by companies including France’s national broadcaster, France Televisions, although it is not known whether the risk of airing nudity played a role in deciding on the ban.

The dress code for red carpet events before Theatre Lumiere screenings requires dinner jackets and long dresses.

A “little black dress” is also permitted, or a “cocktail dress, a dark-coloured pantsuit, a dressy top with black pants; elegant shoes and sandals with or without a heel”.

In addition to banning nudity, Cannes has also prohibited “voluminous dresses” with large trains.

This is for practical reasons, as billowing gowns “hinder the proper flow of traffic of guests and complicate seating”.

It is not yet clear whether Cannes bosses will waive the nudity regulations for the A-list guests attending the festival and helping to promote their latest films.

The festival has a recent history of flouting its own rules, particularly when VIPs are involved.

In 2021, Cannes banned personal contact as part of its COVID guidelines, including “la bise”, the customary French peck on each cheek.

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However, on the first red carpet of the event, Pierre Lescure, the festival president at the time, greeted guests including Carla Bruni and Jessica Chastain with the customary “bisous”.

The Telegraph, London

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