THE RUNDOWN

    Demi Moore appeared at SXSW for the I Love Boosters premiere.She wore a Saint Laurent resort 2026 gown designed by Anthony Vaccarello.The draped dress featured a plunging neckline and thigh-high slit.

    Demi Moore knows the power of a slit dress—and at SXSW this week, she leaned into the silhouette in Saint Laurent. While promoting I Love Boosters, the actress stepped out in a draped blue gown by Anthony Vaccarello from the house’s resort 2026 collection.

    The cobalt-blue design featured a plunging neckline and gathered at the hip with a burnt-orange ribbon fastening, before falling open into a dramatic thigh-high slit. It’s a familiar red carpet silhouette that celebrities continue to revisit.

    "I Love Boosters" Premiere

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    Moore paired the gown with strappy sandals, stacked gold bangles, and gold statement earrings. Her hair—now back to its signature ultra-long length—was worn straight with a center part, and she opted for soft, glowy makeup.

    "I Love Boosters" Premiere

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    The wrapped design and hip-tied ribbon reflect a silhouette Vaccarello has returned to repeatedly at Saint Laurent, where lingerie-inspired slip dresses and fluid draping have become recurring elements of his recent collections.

    Saint Laurent - Runway - Paris Fashion Week - Womenswear Fall/Winter 2026-2027

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    Saint Laurent : Runway - Paris Fashion Week - Womenswear Fall/Winter 2024-2025

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    Its striking hues also tap into a recent runway theme of bold color blocking—seen in collections like Valentino’s, where contrasting waist sashes break up otherwise monochrome dresses.

    Valentino Show - Runway  – Interferenze – Fall/Winter 2026

    Daniele Venturelli//Getty Images

    Moore attended SXSW alongside the cast of I Love Boosters, the upcoming film directed by Boots Riley that also stars Keke Palmer.

    The appearance comes during a busy stretch for the actor, who has recently been traveling between fashion events and awards season gatherings. Earlier this week, Moore was among the attendees at Diane von Furstenberg’s annual Oscar luncheon honoring female nominees, where guests included Gwyneth Paltrow, Tracee Ellis Ross, and Katy Perry.

    The star will also be at the Oscars this Sunday as a presenter.

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