Sienna Miller brought her sartorial style to the London premiere of her new film “Burnt” held at the Vue cinema in Leicester Square Wednesday. She walked the red carpet of the premiere along with her co-star Bradley Cooper. The actress looked stunning in a colorful floor-length gown at the event. 

The fashion icon wore a floor length, one-shoulder Marc Jacobs gown at the premiere of “Burnt.” Miller sparkled in the red, blue and silver sequin dress from the label’s Spring Summer 2016 collection. It featured a short sleeve, black lace panelling decorated with sparkly gems that shined under the lights. The dress also had a black sash detail.

The 33-year-old kept her accessorises minimal with only a big ring by Stephen Webster as she opted not to wear a necklace. Her short blonde locks were styled in messy loose curls. Miller and Cooper were pictured laughing and joking on the red carpet.  

Miller also opted for minimal make-up for the evening event. She wore black eyeliner and nude lipstick. The “American Sniper” actress completed her look in black wedge sandals by Roger Vivier.

Meanwhile, Cooper looked dapper in a two piece checked navy suit. The tailored suit fitted him well and he paired it with a crisp white shirt, a blue tie and shiny black brogues. The 40-year-old actor perfectly complimented his outfit with his striking eyes.

The mum-of-one appeared to have put her recent split with actor Tom Sturridge behind her as she appeared happy and relaxed. Cooper was also seen hanging out with Noel Gallagher.

Miller was all dressed up for the after-party of the film in the evening. She was dressed in a slinky number in white, pale brown and black. The cleavage-baring number had a layered, flared skirt and strappy shoulders. She showed off her svelte frame in the dress, while her tresses were styled into an up "do." The actress was glammed up for her evening look in pink blush, mascara and deep red lipstick.

“Burnt” tells the story of chef Adam Jones, played by Cooper, as he battles to rebuild his life after drug use cost him his restaurant. Miller plays his sous-chef, Helene, who helps him in his quest for a Michelin star restaurant in Paris.