Armani could claim some big wins: The designer dressed Jessica Chastain, Naomi Watts and Quvenzhane Wallis.
Jessica Chastain, in a glistening copper-tone strapless gown with mermaid hem, looked like an old-world glamorous movie star, especially with her oversized vintage Harry Winston diamond earrings and bright red lipstick.
Quvenzhane with a silver headband in her hair and carrying a bedazzled puppy purse, wore an Armani Junior navy-blue dress with black, navy and silver jewels scattered on the skirt and a big bow on the back. She had another Armani dress, a pink one, ready for the afterparty.
Naomi wore a gunmetal beaded gown with a geometric cutout on the bodice, also by Armani.
Dior gave a tough competition: The designer dressed Jennifer Lawrence and Charlize Theron.
Jennifer Lawrence was the belle of the ball in a white-and-pale pink strapless gown with fitted bustier and poufy hemline, sophisticated pulled-back hair, diamond-ball earrings and a delicate long necklace that hung down in back. The long train gave her trouble as she went to accept her award for best actress. She stumbled as she approached the stage to accept her Oscar.
Charlize Theron was sleek in an angular strapless dress with a fashion-right peplum and a buzz-cut hairdo.
Another look that had people talking was Anne Hathaway's pale pink Prada dress. Rubenstein called the dress and Tiffany & Co. necklace 'an Audrey Hepburn moment'.
Halle Berry said she trusted Donatella Versace to dress her like the Bond girl that she has been on the big screen. She ended up in a silver beaded-and-black gown with long sleeves and V-neck.