Julianne Moore, Justin Theroux, & Sienna Miller Step Out for Louis Vuitton Event in NYC!

Julianne Moore and Justin Theroux hit the orange carpet as they arrive at the Louis Vuitton X Grace Coddington Event on Thursday (October 25) in New York City.

The 57-year-old Oscar-winning actress looked pretty in an orange and gray plaid dress and leather pants while the 47-year-old actor kept things cool in a black trench coat and leather jeans for the event.

PHOTOS: Check out the latest pics of Julianne Moore

Other stars at the event included Sienna Miller, Michelle Williams, Sofia Coppola, Riley Keough, and Noomi Rapace.

The event was held to celebrate Louis Vuitton‘s new capsule collection – titled “Catogram” – with Vogue‘s creative director Grace Coddington.

15+ pictures inside of the stars at the event…