Today in glam: Sienna Miller's premiere quick-change

Luck be the lady who gets a wardrobe like Sienna Miller's.The Burnt star showed off not one, but two gorgeous gowns at her chef-focused film's London premiere on Wednesday night.

First up: The red carpet

Sienna wore a Marc Jacobs gown straight from his Spring 2016 collection.

Round 2: The after-party

Why totter around in a fitted gown when you can party in this slinky (slightly Cruella DeVille-inspired) Céline number? It doesn't hurt that she had her work husband, Bradley Cooper on hand.

Next step: Dusting off that free pasta machine.