Sultry Sienna Miller channels inner 20s siren in slinky slip dress!

Published Wednesday, Sep 23 2015, 11:50 BST  |  By  |  Add comment
Sienna Miller injected heaps of 20s glamour into the San Sebastian Film Festival yesterday evening when she arrived on the red carpet in this absolutely beautiful silk dress.

The actress went all Downton Abbey on us in the slinky peach floor-length number that skimmed her stunning slender figure, however it was obvious that Ms. Miller decided to give her bra the elbow...

Sienna Miller at San Sebastian International Film Festival, 23rd September 2015

© WENN / Sean Thornton

Is that nipple we spy? Whoops!

In spite of her little wardrobe malfunction, Sienna looked every inch the vintage siren in the trailing gown as she offset the striking look with a slick of deep red lipstick and bushy, bold brows.

Her bob-style tresses were slicked back into an effortless yet oh-so-chic chignon bun which was pinned to her crown for a prim and proper yet super-stylish vibe that wouldn't look out of place at Fashion Week.

Where's the catwalk when you need one?

A simple silver necklace and crystal studded earrings were all the blonde beauty needed to complete her gorgeous getup as she posed for the paps ahead of the 'High Rise' premiere in sunny Spain.

Totally smashed it right? Even sans the undies!

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