Sienna Miller In Matthew Williamson – Vault Couture All Saints

Sienna Miller was bursting with colour when she attended the autumn dinner and All Saints party at Petersham Nurseries in Richmond, England last night.

The event was in aid of Too Many Women, supporting Breakthrough Breast Cancer.

The British actress wore a Matthew Williamson Spring 2012 dress.

Sienna is to Matthew Williamson as Renee Zellweger is to Carolina Herrera: devoted, loyal and usually the first to wear a look from the latest collection.

Her coral sequin-embellished and feathered confection was accessorized with a metallic box clutch and subtle suede Charlotte Olympia platform pumps.

This is one occasion where fancy shoes weren’t needed because it’s all about the dress.

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20.09.11

Sienna Miller In Christian Dior – Moet & Chandon Etoile Awards

Sienna Miller attended the Moet & Chandon Etoile Awards in London last night which honoured Mario Testino.

Like Rosie Huntington-Whiteley, the British actress also wore white…I will guess it was the theme of the night.

Sienna was almost unrecognisable wearing a Christian Dior gown.

Her spaghetti-strap gown with fan-shaped, embellished details is a huge departure from how we are used to seeing her.

I can’t even remember her last red carpet appearance, so this glamorous look is refreshing.

Whilst the gown is spectacular, her makeup is off-putting.

The berry lip isn’t too bad, but the raccoon eyes are shocking.

Credit: INFPhoto & Getty

Sidewalk Style: Sienna Miller In Twenty8Twelve

Sienna Miller was spotted out with her new beau Tom Sturridge in London recently.

The couple were papped leaving a pub, where they were seen smoking and laughing together outside over beer.

On the summery day Sienna wore a Twenty8Twelve Fall 2011 ensemble.

Her look included a pair of Twenty8Twelve ‘Florence’ funky printed pants which she paired with a simple white t-shirt from the same collection.

These red Chloé Paraty leather bags are becoming quite a celebrity favourite as Rosie Huntington-Whiteley was spotted carrying the same bag last week.

Studded sandals completed her look.

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Who Wore Ralph Lauren Better? Melanie Thierry or Sienna Miller

Back in April, French actress Melanie Thierry attended a private dinner in Paris to celebrate the opening of ‘The Art of the Automobile: Masterpieces of the Ralph Lauren Collection.’

She opted to wear a Ralph Lauren Spring 2011 cream crochet dress which has a high neckline, plus crochet and lace panels handcrafted in linen and cashmere.

Melanie paired the summery dress with nude YSL ‘Tribute’ heels and a brown leather Ralph Lauren bag. She styled her hair in a casual bun and wore pink lipgloss.

Sienna Miller wore the same dress to attend Ralph Lauren’s Wimbledon party last month.

The actress paired the dress with patent leather black boots and a black bag with an extra long strap. She wore her hair in a disheveled ponytail and added some bright pink lipstick to her look.

My vote is going to Melanie on this one as I think she played up the romantic vibe of the dress perfectly with her neutral-coloured accessories and pretty makeup.

The black shoes and bag feel too harsh for this kind of look on Sienna, plus her hairdo is definitely the wrong style for such a delicate dress.

Click on the image above to see more images.

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01.07.11 Sidewalk Style

Sidewalk Style: Sienna Miller’s Tucker Dress

Sienna Miller and her new beau Tom Sturridge were spotted out on a beer run in Chicago yesterday.

Her street style is always interesting to watch.

On this occasion the British actress wore an affordable Tucker mini dress.

The wide-neck print silk dress with short dolman sleeves was paired with Oliver Peoples Gregory Peck rose tinted sunglasses, black patent ballerina flats and a blue suede Gucci shoulder bag.

This is a lovely combination of affordable and high end pieces.

Credit: INFDaily

Sienna Miller In Ralph Lauren – Ralph Lauren Wimbledon Party

Ralph Lauren are the outfitters for the 2011 Wimbledon Championship, so they celebrated with a party at the Ralph Lauren store on Brompton Road in London tonight.

Sienna Miller attended wearing a Ralph Lauren Spring 2011 look.

Her lace ivory dress was tragically accessorized with black boots and a black shoulder bag.

I also have issues with her straggly hair.

Why wear something so delicate and beautiful, if your plan is to make it look so grungy and unappealing?

What a waste of a perfectly good dress.

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20.04.11

Sidewalk Style: Sienna Miller In Azzedine Alaia & Tabitha Simmons

Sienna Miller was spotted leaving Theatre Royal Haymarket last night following her Flare Path performance.

She’s usually spotted leaving wearing jeans and a causal top, but on this occasion the British actress opted for a sexy Azzedine Alaia LBD.

Her Alaia drop-waist dress with flounce hem was teamed with summery Tabitha Simmons ‘Dusty’ sandal booties from the Spring 2011 collection.

The cream, navy and red silk linen open-toe pumps have a closed back and a thin buckle strap over foot.

The rest of the collection of formal and casual shoes has a similar striped theme with some colour-blocking and a variety of textures from leather to canvas.

Check out the Spring 2011 collection below.

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Credit: PacificCoastNews & WWD