CNN  — 

The 76th Venice International Film Festival is well underway. And its opening five days have reminded everyone why this red carpet is considered among the world’s most glamorous.

With guests arriving at the historic Palazzo del Cinema by boat, onlookers have been treated to a display of elegant couture and designer evening wear.

VENICE, ITALY - SEPTEMBER 01: Penelope Cruz walks the red carpet ahead of the "Wasp Network" screening during the 76th Venice Film Festival at Sala Grande on September 01, 2019 in Venice, Italy. (Photo by Pascal Le Segretain/Getty Images)

Fashion at the weekend’s big premieres didn’t disappoint. In particular, Penelope Cruz wowed onlookers in a Ralph & Russo couture gown and Atelier Swarovski jewels at the screening of her new movie “Wasp Network” Sunday evening. And Rooney Mara may have arrived with “Joker” star Joaquin Phoenix to the film’s opening Saturday, but she stole the limelight in a structured white couture gown by Givenchy.

Elsewhere, Kristen Stewart turned heads at the premiere of her new movie “Seberg” on Friday in an elegant fuchsia lace creation by Chanel. She was joined by co-star Margaret Qualley in a pink plissé gown by Gucci, alongside other stars of stage, screen and runway.

Kristen Stewart walks the red carpet ahead of the screening of her new movie "Seberg."

There have been plenty of other eye-catching outfits on display since the festival opened Wednesday.

At the prestigious opening screening, an honor bestowed on French-Japanese production “The Truth,” the movie’s co-stars Catherine Deneuve and Juliette Binochet were among red carpet’s best-dressed (the former in a floor-length dress and sleeveless orange coat by Jean Paul Gaultier, and the latter in a beaded silver satin gown by Armani Privé).

 Juliette Binoche and Catherine Deneuve walk the red carpet ahead of the Opening Ceremony and the "La Vérité" (The Truth) screening during the 76th Venice Film Festival .

Model Martha Hunt stunned in a feathered bodice and high-slit sheer skirt by Alberta Ferretti, while actress Alessandra Mastronardi was every bit the festival hostess in a strapless tulle gown. Elsewhere, Brazilian model Isabeli Fontana, South African model Candice Swanepoel and Chinese actress Ni Ni all impressed in differing shades of gold.

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VENICE, ITALY - SEPTEMBER 05:  Jennifer Lawrence attends the Gala Screening and World Premiere of 'mother!' during the 74th Venice Film Festival at Sala Grande on September 5, 2017 in Venice, Italy.  (Photo by Vittorio Zunino Celotto/Getty Images for Paramount Pictures)
The world's most glamorous film festival?
02:36 - Source: CNN

Thursday evening’s premieres for the much-anticipated “Ad Astra” and “Marriage Story,” also saw the stars of both movies turning up in style. Scarlett Johansson impressed in a custom sequined gown by Celine, while Laura Dern looked elegant in a dark green embroidered Gucci dress.

"Marriage Story" co-star Scarlett Johansson arrvies at the movie's premiere in custom Celine.

There will be more red carpets – and many more fashion moments – to come between now and Sept. 7, when the festival wraps up. But true to form, it has been a glamorous start to the world’s oldest film festival.

Scroll through the gallery above to see the best looks from Venice Film Festival’s red carpet.