Actress Margot Robbie wears a Saint Laurent dress along with Van Cleef & Arpels jewelry
at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Lucas Jackson (UNITED STATES TAGS:ENTERTAINMENT) (OSCARS-ARRIVALS) 

Actress Emma Stone wears a gown by Elie Saab as she arrives at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS)

Actress Jennifer Aniston wears a Versace dress and Fred Leighton jewelry as she arrives at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS)

Actress Lupita Nyong'o wears a Calvin Klein gown and Chopard diamonds as she arrives at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS)

Actress Anna Kendrick, wearing a custom Thakoon dress and Norman Silverman diamonds, arrives at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS) 

Actress Cate Blanchett wears a Maison Margiela gown as she arrives at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS)

"50 Shades of Grey" actress Dakota Johnson arrives at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Lucas Jackson (UNITED STATES TAGS:ENTERTAINMENT) (OSCARS-ARRIVALS)

Reese Witherspoon, best actress nominee for her role in "Wild," wears a white and black off shoulder Tom Ford gown as she arrives at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS)

Actress Zoe Saldana arrives on the red carpet at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Mario Anzuoni (UNITED STATES TAGS:ENTERTAINMENT) (OSCARS-ARRIVALS)

Rosamund Pike, best actress nominee for her role in "Gone Girl," poses on the red carpet as she arrives at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Lucas Jackson (UNITED STATES TAGS:ENTERTAINMENT) (OSCARS-ARRIVALS) 

Actrees Marion Cotillard, best actress nominee for her role in "Two Days, one Night" arrives at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Lucas Jackson (UNITED STATES TAGS:ENTERTAINMENT) (OSCARS-ARRIVALS) 

Singer Jennifer Lopez wears a gown by Elie Saab as she arrives at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS)

Actress Gwyneth Paltrow, wearing a custom Ralph & Russo pink one sleeve gown with a giant flower on the shoulder, arrives at the 87th Academy Awards in Hollywood, California February 22, 2015. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS)