The Birdman nominee showed off her legs in a vampy black Dior couture tuxedo-inspired ensemble with a sheer skirt that displayed a pair of peep-toe Christian Louboutin heels. Diamond Repossi ear cuffs and a bright red lip added more edge.
"I work with a stylist; we have similar ideas, and I think the best work is through discussion and collaboration,” explained the Theory of Everything nominee, who looked elegant in a petal pink Balenciaga gown with criss-cross shoulder detailing and matching satin platform Jimmy Choos. A modern, low bun allowed vintage Van Cleef & Arpels earrings to feature prominently in her look.
"I thought it was kind of mod and cool and fun," said the Homeland nominee of her twisted-halter Marc Jacobs gown that gave a keyhole-size peek at her abs. She accessorized with over $1.5 million in yellow and white diamonds by Norman Silverman.
The Good Wife star made an impact in a cobalt blue Giambattista Valli haute couture gown that showed off her T-strap Jimmy Choo heels.
The Imitation Game nominee wowed in a deep plum Erdem eyelet lace gown with a mesh paneled neckline. Smokey eye makeup and loose waves were the perfect touches to the expectant mom's look.
The St. Vincent star was the epitome of modern elegance in a navy Balenciaga column gown with shimmering black off-the-shoulder detailing, complemented by Bulgari jewels.
The Wild nominee looked sleek in a single-shoulder custom Giorgio Armani gown. "I feel very lucky today that I get to wear pretty things," said Witherspoon while showing off more than $3.5 million worth of Harry Winston jewels, including a 24.62-carat platinum and diamond bracelet.
The best actress SAG Award winner's custom green Givenchy haute couture gown, embroidered with emerald green crystals and crystal fringes, popped against her fair skin and red hair. Purple Chopard earrings added an additional splash of color.
The Cake nominee sizzled in a body-skimming vintage John Galliano gown and Jimmy Choo sandals. The actress added sparkle with Fred Leighton jewels and an Amrit black diamond body chain.
Matthew McConaughey’s wife proved she was more than just a plus-one in an eggplant-hued Donna Karan Atelier draped mermaid gown with a dramatic side train.