Sadie Sink Makes Venice Film Festival Debut in Blue Alexander McQueen Crystal Harness Gown

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Stranger Things’ Sadie Sink is busy proving she’s a versatile actress as she takes on a new role in the psychological drama, The Whale, which premiered at the 79th Venice International Film Festival on Sunday.

Set to be released theatrically on December 9, the Darren Aronofsky-directed movie follows a 600-pound middle-aged English teacher, Charlie (played by Brendan Fraser), on his mission to reconnect with his 17-year-old daughter, Ellie (played by Sadie Sink), after he abandoned her and his wife for his gay lover.

Screenwriter Samuel Hunter, Sadie Sink, director Darren Aronofsky, Hong Chau, and Brendan Fraser at the premiere of The Whale during the Venice Film Festival on September 4, 2022Screenwriter Samuel Hunter, Sadie Sink, director Darren Aronofsky, Hong Chau, and Brendan Fraser at the premiere of The Whale during the Venice Film Festival on September 4, 2022 (Credit: Aurore Marechal / ABACA / INSTARimag / Cover Images)

The Whale premiere brought together an all-star guest list, but Sadie Sink managed to stand out in an Alexander McQueen Resort 2023 gown.

Marking her Venice Film Festival debut, the 20-year-old actress looked every inch the movie star in a sparkling blue gown.

Sadie Sink steals the spotlight in a custom Alexander McQueen gownSadie Sink steals the spotlight in a custom Alexander McQueen gown (Credit: Alberto Terenghi / IPA / INSTARimage / Cover Images)

She flaunted her toned midriff in the custom number that features a cutaway waist, a strapless bandeau top, and mesh paneling.

It also comes with a layered powder blue tulle skirt attached to the crystal-embellished metal harness around the hips.

Stylist Molly Dickson finished off Sadie’s revealing outfit with a Chopard diamond snake ring and a pair of black patent platform heels.

Sadie Sink flaunts her abs in the crystal harness gown with a layered powder blue tulle skirtSadie Sink flaunts her abs in the crystal harness gown with a layered powder blue tulle skirt (Credit: Aurore Marechal / ABACA / INSTARimag / Cover Images)

Giving mermaid vibes, Sadie had her copper tresses styled in waves over her chest by celebrity hairstylist Halley Brisker.

She then wore glittery periwinkle eyeshadow, mascara, and soft pink lipstick, applied by makeup artist Nina Park.

Sadie Sink styles her long ginger tresses in mermaid waves and wears periwinkle eyeshadow with pink lipstickSadie Sink styles her long ginger tresses in mermaid waves and wears periwinkle eyeshadow with pink lipstick (Credit: Aurore Marechal / ABACA / INSTARimag / Cover Images)

Earlier, Sadie Sink opted for another Alexander McQueen Resort 2023 design as she attended the photocall for The Whale.

She wore a white cotton poplin shirtdress with a full midi-length skirt and a sleeveless top with waist cutouts.

Sadie Sink attends The Whale photocall in an Alexander McQueen cotton poplin midi dress layered with a grommet-embellished leather harnessSadie Sink attends The Whale photocall in an Alexander McQueen cotton poplin midi dress layered with a grommet-embellished leather harness (Credit: Alberto Terenghi / IPA / INSTARimage / Cover Images)

Adding a tough-chic edge to the classic summer silhouette was a black leather harness overlay that’s studded with silver-tone grommets.

When it came to her glam, Sadie wore minimal makeup and styled her long mermaid waves into a half-up, half-down style with face-framing bangs.

Sadie Sink styles her red tresses in a half-up, half-down style and hides her eyes behind a pair of Alexander McQueen sunglassesSadie Sink styles her red tresses in a half-up, half-down style and hides her eyes behind a pair of Alexander McQueen sunglasses (Credit: KIKA Press / Cover Images)

With the help of her stylist Molly Dickson, Sadie toughened up the look with a sculptural silver ring and a pair of black leather platform boots, also by Alexander McQueen.

These $1,390 ankle boots have rounded toes, side zips, and 5-inch block leather heels.

Sadie Sink toughens up her edgy outfit with Alexander McQueen platform ankle bootsSadie Sink toughens up her edgy outfit with Alexander McQueen platform ankle boots (Credit: KIKA Press / Cover Images)

On Monday, Sadie opted to embrace summer’s nautical trend as she made her way to the Hotel Excelsior.

Going for a head-to-toe Gucci, the American Odyssey star wore the $2,800 “Maxi GG” cotton jacket featuring a maximalist version of the classic GG monogram. It also has blue trims, gold-toned GG buttons, peak lapels, and front pockets.

Sadie Sink goes nautical in a Gucci Maxi GG jacket and matching pants at the 79th Venice Film FestivalSadie Sink goes nautical in a Gucci Maxi GG jacket and matching pants at the 79th Venice Film Festival on September 5, 2022 (Credit: Simone Comi / IPA / INSTARimages / Cover Images)

She paired the crop top with its matching $1,800 Maxi GG cotton pants, which boast the same maxi GG motif.

Sadie cuffed her pants at the hem to show off her Gucci “Keyla” platform sandals that you can buy in white at Saks Fifth Avenue and in black and snake print at Nordstrom.

Sadie Sink pairs her Gucci summer jacket and pants with strappy Keyla platform sandalsSadie Sink pairs her Gucci summer jacket and pants with strappy Keyla platform sandals (Credit: Simone Comi / IPA / INSTARimages / Cover Images)

Done in Mystic White leather, these sandals have peep toes, ankle buckle straps, 2.5-inch platforms, and 6-inch towering block heels.

Gucci ‘Keyla’ Platform Strappy Sandals, $1,150 at Saks Fifth Avenue

The Keyla sandals by Gucci have thick uppers with peep toes, chunky platforms, and high block heelsThe Keyla sandals by Gucci have thick uppers with peep toes, chunky platforms, and high block heels

Hiding her eyes behind a pair of Gucci Round Metal sunglasses, Sadie wore a natural makeup look and let her long red wavy locks flow down her back.

Sadie Sink flashes her pearly whites and wears her Gucci round sunnies on top of her headSadie Sink flashes her pearly whites and wears her Gucci round sunnies on top of her head (Credit: Simone Comi / IPA / INSTARimages / Cover Images)