Skip to main content
Bill Gates arriving at the 12th Annual Breakthrough Prize Ceremony.
Stylish pillbox organizer for vitamins and supplements.
Doctor discussing GLP-1 treatments in a clinical setting.

Celebrity

Sienna Miller Shines In A Periwinkle Keyhole Cut-Out Dress At The ‘Sandman’ Premiere—We’re Speechless!

August 12, 2022 by Marissa Matozzo
shefinds | Celebrity
Featured image

Sienna Miller made a stunning statement in an elegant blue midi dress at the London Sandman premiere this week! The Wander Darkly star, 40, donned a curve-hugging periwinkle garment that featured ribbed fabric, a central keyhole cut-out, a low-cut neckline and classic bell sleeves. We’re in awe!

Miller’s light blue lurex dress is by Self-Portrait and highlighted her incredible figure with its bow-shaped bodice, shoulder detailing and waist emphasis. The American Sniper actress added white sandal heels and a matching bag to complete her look, and styled her signature long, wavy blonde tresses into an elegant updo for the event. Miller’s gown also featured an open, square back design, drawing eyes to her gorgeous ensemble even more.

 

 

View this post on Instagram

 

A post shared by SELF-PORTRAIT (@mrselfportrait)


Miller graced the BFI Southbank premiere to support her ex of four years, lead actor Tom Sturridge, with whom she shares daughter Marlowe, 10. The designer of her dress for the soiree shared her outfit with their 1.2 million followers in an Instagram post— a photo of Miller posing on the red carpet.

The label wrote, “Sienna Miller in our LIGHT BLUE LUREX KNIT MIDI DRESS at “The Sandman” World Premiere in London,” while garnering thousands of likes and comments from fans in the process.

 

 

 

View this post on Instagram

 

A post shared by @skybluepeaches


“Obsessed with this dress!” wrote one fan while another dubbed Miller as the “og fashion killaaaa” with heart-eye emojis. More fans commented that Miller looked “absolutely stunning in blue” and we couldn’t agree more.

 

Author:

Former Senior Staff Writer

Marissa is a Brooklyn-based journalist and former senior staff writer at SheFinds, specializing in pop culture, entertainment, and lifestyle topics. She crafted engaging, SEO-driven content on celebrity style, entertainment news, beauty trends, and wellness. Her work, including red carpet coverage and features on fashion, music, film, and NYC culture, has appeared in PAPER Magazine, Paste Magazine, The Knockturnal, Bandsintown, and more. When not writing, you can find her with her nose in a great book, at an indie concert, vintage shopping or visiting the best coffeeshops in NYC.

The Smith family at the Bad Boys premiere event.
Kourtney Kardashian at the Grammy Awards red carpet.
Katy Perry and Orlando Bloom sharing a moment together.
Prince William and Prince Harry at a public event.
Bianca Censori showcasing fall/winter fashion collection.
David JD Vance and Usha Vance at Elysee Palace in Paris.
Shania Twain performing at the Annual Academy of Country Music.
Donald Trump discussing maternal healthcare at a public event.
Queen Camilla and Kate Middleton attending a royal function.
Kim Kardashian at the Kering's 3rd Annual Caring for Women Dinner.
Kylie Jenner and Stormi Aire with Timothée Chalamet at an event.
Madonna at the Met Gala in a stunning outfit.
Taylor Swift arriving in a private jet in 2024.
Jennifer Lopez in Defaience at the 2025 American Music Awards.
Vittoria Ceretti with Leonardo DiCaprio at a gala.
Emma Stone attending the Annual Actor Awards ceremony.
Salma Hayek at the 12th Annual Breakthrough Prize Ceremony.
Kate Middleton during a state visit looking elegant.
Ariana Grande showcasing her fashion at the Golden Globes.
Kylie Jenner's elegant ensemble at the Met Gala 2025.
The Smith family at the Bad Boys premiere event.
Kourtney Kardashian at the Grammy Awards red carpet.
Katy Perry and Orlando Bloom sharing a moment together.
Prince William and Prince Harry at a public event.
Bianca Censori showcasing fall/winter fashion collection.
David JD Vance and Usha Vance at Elysee Palace in Paris.
Shania Twain performing at the Annual Academy of Country Music.
Donald Trump discussing maternal healthcare at a public event.
Queen Camilla and Kate Middleton attending a royal function.
Kim Kardashian at the Kering's 3rd Annual Caring for Women Dinner.
Kylie Jenner and Stormi Aire with Timothée Chalamet at an event.
Madonna at the Met Gala in a stunning outfit.
Taylor Swift arriving in a private jet in 2024.
Jennifer Lopez in Defaience at the 2025 American Music Awards.
Vittoria Ceretti with Leonardo DiCaprio at a gala.
Emma Stone attending the Annual Actor Awards ceremony.
Salma Hayek at the 12th Annual Breakthrough Prize Ceremony.
Kate Middleton during a state visit looking elegant.
Ariana Grande showcasing her fashion at the Golden Globes.
Kylie Jenner's elegant ensemble at the Met Gala 2025.