Sienna Miller Is A Fairy Princess While Bryce Dallas Howard Takes The Plunge At The Breakthrough Awards

Beauties!
Sienna Miller and Bryce Dallas Howard looked fab at the Breakthrough Awards in LA Sunday.
Photos: Best Dressed Celebs Of The Week
The actresses took two very different approaches to style, with the blonde in a lace dusty rose gown that looked incredibly delicate and the redhead in a plunging floral print number with definite sex appeal.
Loving that side boob, Bryce!
Sienna’s wispy bangs and light makeup made her look like a princess out of a fairy tale, while Bryce gave off more femme fatale-ish vibes in her revealing gown and flowing locks.
Who’s your fave???
[Image via WENN.]