Emma Stone’s dress by Dior designer Raf Simons was one part tuxedo dress, one part sheer maxi skirt. (Ethan Miller / Getty Images)
“Cake” star Jennifer Aniston chose a vintage gown by John Galliano because she fell in love with it, she told E! (John Shearer / Invision / AP)
Claire Danes chose an army green Marc Jacobs gown, a riff on his spring 2015 collection. (Frazer Harrison / Getty Images)