Australian actress Rose Byrne competes for Best Actress at the Oscars, wearing Christian Dior on a sweltering red carpet in Los Angeles. The greenhouse-like covered carpet traps heat as A-list stars including Timothée Chalamet, Jacob Elordi, and Jessie Buckley arrive for Hollywood's biggest night. Red emerges as the dominant colour trend, with fashion experts noting the Oscars sets global fashion precedents for the following 12 months.

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