Popsugar Fashion Celebrity Fashion Sienna Miller and Emily Blunt at the 2021 Met Gala Sienna Miller and Emily Blunt Wore Matching Outfits to the Met Gala For a Second Time 14 September 2021 by Kara Kia View On One Page Photo 2 of 3 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Previous Next Start Slideshow Celebrity FashionBritish CelebritiesMet GalaDressesRed CarpetEmily BluntSienna Miller