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 Screen Actors Guild Awards gave movie buffs yet another taste of what to anticipate for the Oscars next month — and plenty of funny moments from Hollywood’s biggest names.