If Saturday's 64th Annual Directors Guild of America Awards are any indication, Hollywood's biggest stars will be pulling out all the stops at Sunday's Screen Actors Awards.

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Jennifer Aniston, 42, showed up to Saturday's event wearing her go-to look: a strapless black mini-dress by Dolce & Gabbana. The Wanderlust star accessorized her look with Fred Leighton diamond fringe pendant earrings and a 13-carat rose-cut diamond and platinum ring.

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The Descendants star Shailene Woodley, 20, opted for a very different look in a red lace Valentino dress, Jimmy Choo shoes and Herve Leger undergarments.

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Amber Heard, 25, continued her impeccable red carpet run in a navy jersey dress by Roland Mouret. Helen Mirren, 66, looked classic in a pale gold, cleavage-baring dress by Badgley Mischka.

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