The 40-year-old actress was joined on the red carpet by her August: Osage County co-star Chris Cooper.
The cast of August: Osage County was nominated for the Best Acting Ensemble award, but unfortunately lost out to the cast of American Hustle.
In case you missed the big show, check out all the winners from the evening right here!
FYI: Juliette is wearing a Zac Posen gown, Rupert Sanderson shoes, Coomi jewelry, and Brian Atwood clutch. More Here! »