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HAPPY FAMILIES: The whole Seydoux clan — and a few extended family members — were on hand to help stylist Camille Seydoux celebrate her “Prismick Denim” capsule collection for Roger Vivier on Monday evening at the brand’s boutique on Rue du Faubourg Saint-Honoré.

This story first appeared in the March 9, 2016 issue of WWD. Subscribe Today.

There was papa, businessman Henri Seydoux, and his wife, the model and filmmaker Farida Khelfa, and sister Léa, most recently seen as Bond girl Madeleine Swann in “Spectre.”

Adèle Exarchopoulos — practically family since she costarred with Léa in the 2013 movie “Blue is the Warmest Color” — boogied away on the dance floor with Camille’s cute seven-year-old son to tunes including Rihanna’s “Work.”

Many guests were proudly sporting items from the six-piece capsule collection, Seydoux’s first commercial collaboration with a brand. The collection features three different bags as well as sneakers, sandals and ankle booties made of a patchwork of different colored denims. The items are on sale in Vivier’s stores on a limited-edition basis this month.

“I thought a patchwork of denim was a way of doing something younger, more urban, that broke with the sophisticated side of what I normally do and the house of Vivier, too,” Seydoux said.

As to her favorite denim items, she admitted to being a bit of a classicist, citing her brand of choice as Levi’s. “I like the boyfriend style best,” she said.

Younger sibling Léa is less of a denim aficionado. “I love jeans, but I don’t think it’s what suits me best, I prefer pants. I like denim jackets, though, vintage ones,” she said. “When I go to New York with another of my sisters, we love going to the vintage clothing stores,” said the actress, who has just wrapped Xavier Dolan’s “Juste la fin de monde,” in which she stars alongside Marion Cotillard, Gaspard Ulliel, Vincent Cassel and Nathalie Baye.

Stepmom Khelfa is a denim hoarder. “I always wear jeans; it’s my husband’s nightmare,” she said. “I have about 300 pairs. My favorites are Levi 501’s, but I like flared jeans, too.

“But jeans are the least comfortable trousers in the world, so I think it’s a really good idea to do shoes and bags based on denim with the Vivier style,” she added.

“I’m lucky to work with Uniqlo, and they make me jeans that I love, with copper buttons and the fabric and finish that I love,” said brand ambassador Inès de la Fressange. “Today I’m wearing Seafarer,” she said, pointing to her indigo flares. “I love the vintage look.”

“My daughters wear high-waisted “mama” jeans. I hate that, but on them it looks good. The return of the Eighties is not my thing,” de la Fressange continued.

That decade was already over when Exarchopoulos entered the world. At the tender age of 22, she cites her favorites as, “baggy, old-school style jeans. My favorites are the ones I bought when I was a kid at Levis. They still fit me…in the morning before I have my cereal.”

Marie-Ange Casta, Natasha Andrews, Marie Beltrami, Marpessa Hennink, Vincent Darré and Lambert Wilson were also among the guests.

Casta, who has just finished shooting a road movie with Édouard Baer, was another lover of vintage denim. “Acne or old Levi’s,” she said. “I recently found a great pair of vintage overalls in Los Angeles.”