Margaret Qualley's Backless Chanel 2025 Oscars Dress Secretly Nods to 'The Substance' LOS ANGELES, SEP 20 Margaret Qualley at the HBO Primetime Emmy Awards After Party at the Pacific Design Center on September 20, 2015 in West Hollywood, CA 9245581 Stock Photo at Vecteezy Margaret Qualley on Substance, Surrender, and Life With Jack Antonoff Vanity Fair Margaret Qualley Stuns in a Micro Black Minidress With a Low Neckline Margaret Qualley Wore Chanel at the 2025 Oscars Margaret Qualley reveals why she 'felt lonely' before Jack Antonoff