Red Carpet Watch: Oscars 2015

Ms. Cotillard in Dior.See more of her looks

Ms. Dern in Alberta Ferretti.

Ms. Johnson in Saint Laurent.

Ms. Aniston, who plays a woman in chronic pain in “Cake,” is more closely associated with her hairdresser, Chris McMillan, than any wardrobe stylist.

Ms. Stone’s outfits seem to be synced partly with her chameleonic changes of coiffure.

What Ms. Pike wears on the red carpet.

The New York Times