When Brie Larson showed up to the Room premiere in Tokyo, she made quite the entrance. Smoke blasted into the air, confetti flew — and we like to think it's because the style star snatched her Rodarte dress straight off the runway [1]. Not only did she get her hands on a Fall '16 number right away [2], but she also picked a top-notch design [3]: it's dark and romantic with lace-finished sleeves and a tiered hem, but a little girlie too, thanks to jeweled embellishments and sequins. Brie even shared an Instagram [4] of the fashion moment, her costar Jacob Tremblay by her side in a spiffy red suit. Read on to see the look on the catwalk, then see how Ms. Larson brought it to life with Roger Vivier stilettos and sparkling Niwaka jewels.

Brie in Her Rodarte Dress at the Room Premiere in Japan

Brie's Rodarte Dress on the Fall '16 Runway

Brie and Jacob's Entrance at the Premiere