Olivia Wilde

Olivia Wilde. Photos: Jon Kopaloff/FilmMagic | Jason Merritt/Getty Images For DETAILS Magazine

Uptown: "Cowboys & Aliens" World Premiere
Look: The brunette beauty posed pretty on the red carpet in her signature smoky eyes, a high ponytail and petal pink lipstick.

Downtown: Details Magazine and Ryan Reynolds Party
Look: Wilde lets loose in messy waves, brow-grazing bangs, emerald green eyeshadow and peach blush.