Linda Cardellini's oversized flounce of red ruffles cascaded in layers down her body, cinched together with a pink belt, from designer Schiaparelli. REUTERS/Mario Anzuoni
Lady Gaga brought old Hollywood glamour - and the bling to match - in an Alexander McQueen black gown, leather gloves and a 128 carat diamond from Tiffany. REUTERS/Mario Anzuoni
Regina King, who won the supporting actress Oscar for her work in "If Beale Street Could Talk," wore a white strapless Oscar de la Renta with an elegant swirl at the hip and a dramatic train. REUTERS/Mario Anzuoni
Brie Larson wearing Celine by Hedi Slimane. REUTERS/Mario Anzuoni
"Crazy Rich Asians" star Constance Wu showed up in bright marigold chiffon, adding a cheery glow to the red carpet in her custom Versace gown. REUTERS/Mario Anzuoni
Billy Porter wore a black velvet tuxedo gown designed by Christian Siriano, the top a classic tuxedo with a built-in bodice and the bottom a full, dramatic sweep of fabric. "If we were going to do a tuxedo it couldn't be just a tuxedo.
Helen Mirren wearing Schiaparelli Haute Couture. REUTERS/Mario Anzuoni
Bradley Cooper arrives with mother Gloria Campano and his wife Irina Shayk. REUTERS/Mario Anzuoni
Jennifer Hudson, Tina Fey, Maya Rudolph and Amy Poehler. REUTERS/Mario Anzuoni
Emma Stone's coppery Louis Vuitton gown with futuristic shoulders was covered in sparkling paillettes resembling modified scales. REUTERS/Mario Anzuoni
Glenn Close chose a shimmering gold Carolina Herrera tunic dress - with four million beads, the actress noted - with a heavy flowing train. "My God, how much does it weigh?" gasped E! host Ryan Seacrest, who struggled to lift her train.
Olivia Colman, wearing Prada, and husband Ed Sinclair. REUTERS/Mario Anzuoni
Angela Bassett was easy to spot in an electric pink gown by Reem Acra whose gargantuan bow at the shoulder was worthy in itself of an award. REUTERS/Mario Anzuoni
Jennifer Hudson's elegant Elie Saab gown featured a red ruffle that slithered from one shoulder down to a slit at the side. REUTERS/Mario Anzuoni
Black Panther's Michael B. Jordan and Winston Duke. REUTERS/Mario Anzuoni
Best Supporting Actor nominee Sam Rockwell and Leslie Bibb arrive. REUTERS/Mario Anzuoni