The Boyhood star is a vision in Vivien Westwood Couture at the 2015 SAG Awards.
At the 2015 Golden Globes, the actress goes for sleek sophistication with a one-shoulder Escada gown.
Both gals sport all-black ensembles, with daughter Harlow adding interest to her look by wearing cat ears.
Alongside artist Eric White, the blond star is understatedly chic in a Annabelle Harron dress with Christian Louboutin heels.
In a glistening sequined gown, the Medium alum is an emerald goddess at the 2010 SAG Awards.
Sure, we like the actress' dark teal damask midi from the Board Walk Empire season four premiere, but we love her dangling earrings and swept-back updo.
At the Scream 4 premiere, she spices up her LBD with a waist belt, shoulder cutouts and turquoise embellishments.
Ms. Arquette again picks a one-shoulder silhouette for the 2009 Emmy Awards.
We're not sure why she picked a sari for the 2008 Art of Elysium Gala, but hey—girl looks radiant!
Sister act! Patricia and big sis Rosanna Arquette are perfectly polished at the 2007 Golden Globes.
For the 2013 White House Correspondents' Association Dinner, the Emmy-winning actress made quite the entrance in a ruffled and sequined gown.
Matchy matchy! The star picks a tangerine pout to coordinate with her long-sleeved gown and YSL clutch at the 2014 SAG Awards.