Sienna Miller’s Second M&S Collaboration Launch Was a Party

LONDONSienna Miller, queen of bohemian dressing, says her party style is all about movement.

“I can’t be in something that you can’t move in, or have fun in,” said Miller at the launch of her second collaboration with Marks & Spencer earlier this week.

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True to her word, the British actress sported an oversized, white three-piece suit from the new capsule.

Miller posing with clothing from the collection.
Miller posing with clothing from the collection.

At the launch, guests sipped espresso martinis and munched on canapés in a private room at Louie, a French-style brasserie in Soho.

“It’s been a good year for M&S. Our womenswear has reached its highest market share in over 10 years,” said Richard Price, the British retailer’s managing director of clothing and home.

“We’re obsessed with our style perceptions, because a few years ago they weren’t particularly great. With Sienna’s help we’ve seen a massive improvement in those perceptions in the past year,” he added.

The actress models a festive sparkly dress from the collaboration.
The actress models a festive sparkly dress from the collaboration.

Miller’s signature boho style is reflected in the glitzy party edit, which features sequined minidresses, beaded jackets and trousers, and fluffy faux fur coats. It retails from $32 for a patterned belt to $195 to a beaded jacket.

“It was a really fun challenge,” said Miller about the designing the collection, which she did during the 2023 actor’s strike and while she was pregnant.

“I needed some creative outlet, and this came up,” she said. “And seeing it on real bodies in this room is so inspiring. I really love designing!”

A lace slip can be dressed up for day or night.
A lace slip can be dressed up for day or night.

Miller’s baby is now 10 months old, and when asked if she would ever design a children’s line, the actress said she “would love to.”

She also teased that she would be filming something in January, although she didn’t disclose what the upcoming project was.

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