Fonda's acceptance of the Life Achievement Award spotlights her role not only as a legendary actress but also as a powerful voice for social change. Throughout her career, she has used her platform to advocate for climate change awareness, human rights, and, more recently, resistance against political forces she views as harmful.

A halo of side-swept bangs, the white shade of her Dior gown and an absence of makeup gave the actress, a star of “The Last Showgirl,” an air of purity on the carpet. A single caped sleeve, which evoked an angel’s wing, was another heavenly detail.

The 31st Screen Actors Guild Awards on Sunday night should offer the final clue in an unusually unpredictable Oscar race. The other major awards — including the BAFTAs, the Producers Guild Awards, the Directors Guild Awards and the Golden Globes — have all had their say.