Coco Rocha wearing a deconstructed mermaid gown by Ionut Razvan on the The History of Sound red carpet
Photograph: Lionel Hahn/Getty Images

Gracie Abrams wearing a custom black satin-crêpe dress by Chanel on the The History of Sound red carpet
Photograph: Andreas Rentz/Getty Images

Paul Mescal in a sharp black Gucci suit at the The History of Sound red carpet on Wednesday evening
Photograph: Lionel Hahn/Getty Images

Former pop star Kyoko Saito who plays a K-pop idol in Koji Fukada’s Love on Trial
Photograph: Stéphane Cardinale/Corbis/Getty Images

Indian actor Aishwarya Rai Bachchan arrives for the screening of The History of Sound in a white saree
Photograph: Valéry Hache/AFP/Getty Images

Pedro Pascal wearing a sleeveless tank and trouser suit by Calvin Klein at the photocall for Ari Aster’s Eddington.
Photograph: Lyvans Boolaky/Getty Images

Aja Naomi King breaks the rules with her pink mousseline plissé Miu Miu gown at The History of Sound screening
Photograph: Lionel Hahn/Getty Images

Harris Dickinson at the press call for Urchin, his directorial debut, wearing a slogan T shirt protesting homelessness comments by Suella Braverman
Photograph: Harris Dickinson/Instagram

Scarlett Johansson arrives at the screening of A Private Life in a strapless chiffon lavender Prada gown with a possibly-too-long train
Photograph: Mike Marsland/WireImage

German model Toni Garrn breaks the festival’s ‘no naked dress’ rule by wearing a barely there bustier and trouser set on the red carpet of A Private Life
Photograph: Tom Nicholson/Shutterstock

Jodie Foster after the screening of A Private Life, wearing a silver silk draped gown by the soon-to-be-departing Jonathan Anderson for Loewe.
Photograph: SGP/Shutterstock

Oscar-winner Adrien Brody with his partner, designer Georgina Chapman (wearing her own brand, Marchesa, of course)
Photograph: Guillaume Horcajuelo/EPA

The French actor Leïla Bekhti in a white Alaïa dress at the screening of Alpha
Photograph: Reynaud Julien/APS-Medias/ABACA/Shutterstock

Actor and president of the jury of the festival Juliette Binoche wearing a corset, leather Dolce & Gabbana trousers and a sheer duster coat for the screening of Alpha
Photograph: Sameer Al-Doumy/AFP/Getty Images

Dakota Johnson in a strapless, pink-fringed Gucci gown on the Highest 2 Lowest red carpet
Photograph: Gisela Schober/Getty Images

Actor Sope Dirisu wearing a jumpsuit by Nigerian designer, Sisiano, styled by Helen Seamonsat the My Father’s Shadow photocall.
Photograph: Stéphane Cardinale/Corbis/Getty Images

A$AP Rocky in a white Miu Miu suit with director Spike Lee and actor Denzel Washington at a photocall for their film Highest 2 Lowest
Photograph: Sameer Al-Doumy/AFP/Getty Images

Syrian actor Nader Abd Alhay poses during a photocall for the film Once Upon a Time in Gaza
Photograph: Valéry Hache/AFP/Getty Images

Charli XCX wearing a lavender Saint Laurent gown for the Kering Women in Motion awards and Cannes presidential dinner
Photograph: Lionel Hahn/Getty Images

Jennifer Lawrence wears a Dior two-set at the photocall for Lynne Ramsay’s film Die, My Love
Photograph: Lionel Hahn/Getty Images

Jury member Jeremy Strong in Loro Piana (for the third time) at a screening of the The Phoenician Scheme
Photograph: Stéphane Cardinale/Corbis/Getty Images

Daisy Edgar-Jones in sequinned Gucci at the screening of The Phoenician Scheme
Photograph: Valéry Hache/AFP/Getty Images

Halle Berry in a Chanel two-piece on The Phoenician Scheme red carpet
Photograph: Lionel Hahn/Getty Images

Zoey Deutch wears a Chanel dress during a photocall for Richard Linklater’s film Nouvelle Vague.
Photograph: Sameer Al-Doumy/AFP/Getty Images

Rihanna wearing Alaïa and A$AP Rocky with a brolly, leaving the Highest 2 Lowest red carpet
Photograph: Stéphane Cardinale/Corbis/Getty Images

Robert Pattinson in Dior triple layers and Converse at the Die, My Love photocall
Photograph: Miguel Medina/AFP/Getty Images

Jennifer Lawrence arrives in a strapless Dior shell gown for the screening Die, My Love
Photograph: Sameer Al-Doumy/AFP/Getty Images

Naomi Ackie at the premiere of Nouvelle Vague in a Balenciaga dress
Photograph: Clemens Bilan/EPA

Julia Garner attends the Eddington red carpet in a lilac fringed gown by Haider Ackermann for Tom Ford
Photograph: Dominique Charriau/WireImage

Kristen Stewart in a Chanel twinset on the red carpet for Bono: Stories of Surrender
Photograph: SGP/Shutterstock

Angelina Jolie arrives in taupe strapless Brunello Cucinelli for the screening of Eddington
Photograph: Bertrand Guay/AFP/Getty Images

Emma Stone in fringed Louis Vuitton for the Eddington photocall
Photograph: Lionel Hahn/Getty Images

Micheal Ward at the Eddington photocall
Photograph: Lyvans Boolaky/Getty Images

Heidi Klum in a rule-breaking gown by Elie Saab at a screening of Partir un Jour (Bye Bye)
Photograph: Sameer Al-Doumy/AFP/Getty Images

Ariana Greenblatt wearing Louis Vuitton for the Eddington red carpet
Photograph: Andreas Rentz/Getty Images

Natalie Portman on the Eddington red carpet
Photograph: Stefania D’Alessandro/WireImage

Angela Bassett wears a two piece by Yara Shoemaker at a photocall for Mission: Impossible – The Final Reckoning
Photograph: Benoît Tessier/Reuters

Andie MacDowell in an Alberta Ferretti slip dress on the Dossier 137 red carpet
Photograph: Samir Hussein/WireImage

Pom Klementieff in a possibly rule-breaking Loewe gown on the Mission: Impossible red carpet
Photograph: Stéphane Cardinale/Corbis/Getty Images

Tom Cruise poses in a polo shirt during a photocall for Mission: Impossible – The Final Reckoning
Photograph: Valéry Hache/AFP/Getty Images

Zoe Saldana wearing Saint Laurent at the Mission: Impossible – The Final Reckoning premiere
Photograph: Deadline/Getty Images

American model Bella Hadid attends the opening ceremony in a Saint Laurent dress
Photograph: Rune Hellestad/UPI/Shutterstock
