The 63-year-old star, long known for her slender physique, appeared even more petite than usual—something that had already sparked online chatter earlier this month following her appearance at the Actor Awards (formerly the SAG Awards).
For the afterparty, Moore wore a striking black Gucci dress with off-the-shoulder straps and a softly plunging neckline. She elevated the look with dramatic black leather opera gloves and a sweeping feather boa that trailed behind her, adding a theatrical edge. Her hair was styled in a refined updo, while her makeup—featuring a bold blush-toned lip—accentuated her sharp features.

She completed the ensemble with statement jewelry, including teardrop earrings and an intricate necklace, as she attended the event at the Los Angeles County Museum of Art.
Her noticeably slim frame in recent appearances has fueled unverified speculation online, with some social media users questioning whether she may be using weight-loss medications. Others commented on her appearance, calling her “too skinny” or joking about Hollywood trends, though none of these claims have been confirmed.

Moore recently starred in the 2024 body-horror film The Substance, in which she plays an aging actress who creates a younger version of herself—portrayed by Margaret Qualley—through an illicit drug that forces the two bodies to alternate consciousness.
She earned an Oscar nomination for the role but ultimately lost the Best Actress award to Mikey Madison for her performance in Anora.

At the Academy Awards ceremony itself, Moore stunned in another Gucci creation—a strapless gown blending green into black with feather detailing—which further подчеркed her petite frame as she walked the red carpet at the Dolby Theatre.
During the ceremony, she also took the stage to present Best Cinematography to Autumn Durald Arkapaw for Sinners, marking a historic win as the first woman in that category.

While seated in the audience, Moore posed for a selfie alongside Emma Stone and Kate Hudson, as well as their partners Dave McCary and Danny Fujikawa.
Also present at the ceremony was Madison, though it remains unclear whether she and Moore interacted during the evening. Madison later appeared onstage to present Best Actress to Jessie Buckley for her role in Hamnet, directed by Chloé Zhao.