The style competition is really heating up as awards season rolls on, and at the SAG Awards on Sunday night, it was all about taking risks. A-list actresses brought out their best designer dresses for the event at the Shrine Auditorium, showing off not-so-subtle slits and striking pale-white and sleek-and-chic black gowns.'

"There were a lot of beautiful black gowns on the carpet last night," Celebuzz producer Rachel Maresca said. "We saw Angelina Jolie in black, we saw Emma Stone, we saw Ashlee Simpson."

For photos of the stars on the red carpet, click here.

Also stunning in black was Stacy Keibler, who managed to stand out while walking the carpet alongside boyfriend and SAG nominee George Clooney.

"I think who nailed it the best was Stacey Keibler. She came arm-in-arm with George Clooney in a black lace Marchesa dress. She's been supporting him at all the award shows. She really stood out herself last night," Maresca said.

The women of "Glee" hit the carpet in silver. Lea Michele wore a high-slit Versace gown, while Naya Rivera wore a beaded Naeem Khan dress with a plunging neckline.

"It's comfortable and I really like the color, and I like the silhouette as well. It's heavy, but it's good," Rivera told MTV News.

The undisputed red-carpet winners of the night were the stars of "The Help," who won top prize for Outstanding Performance by a Cast in a Motion Picture. Stone wore a black lace Alexander McQueen dress, while her co-star and winner for Outstanding Performance by a Female Actress in a Supporting Role, Octavia Spencer, sparkled in a silver Tadashi Shoji gown. SAG Award winner for Outstanding Performance by a Female Actress in a Leading Role Viola Davis was glowing in a white Marchesa gown, and SAG nominee Jessica Chastain decided to go with a pop of color in custom Calvin Klein.

But it was Natalie Portman who stood out above the rest. Last year's best actress winner for "Black Swan" flaunted her post-baby body in a strapless burgundy gown by Giambattista Valli.

"She looked very elegant," Maresca said. "She really wowed everybody."

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