When Sienna Miller introduced her latest collection for the beloved British retailer Marks & Spencer back in June—a capsule that distilled Y2K-boho nostalgia into 33 pieces of affordable clothing—she told the journalists assembled for the launch: “There’s no one that does undone, relaxed chic like the Brits. I think it’s something to do with the irreverence and the English sense of humor.”
Miller has proved the validity of this theory all summer long with her artfully disheveled aesthetic, her wardrobe a carousel of Chloé ruffles, hobo bags, and—yes—clogs. “Fashion’s been in a place that’s really experimental and avant-garde,” she recently explained to Vogue’s Chloe Schama of the appeal of Chemena Kamali’s fresh, romantic bohemianism, “but this felt like, ‘Thank God we can be that girl again.’”
And while, yes, there’s certainly a place to be “that girl” when pottering around Portobello or smoking American Spirits at Worthy Farm, the Venice Film Festival calls for a Rimowa trunk or two filled with looks that are decidedly more “done.” While Miller touched down in La Serenissima on Friday wearing Kamali’s designs head to toe (including a pair of leopard-print trousers from the resort 2025 collection), she soon shifted into Maddalena-in-La-Dolce-Vita mode for the red carpet.
See: the flounce-, floral- and frill-less LBD Miller dug out of the Armani archives for the premiere of her short film Orizzonti Corti (Short Horizons), which, to everyone’s relief, is in no way affiliated with An American Saga. Sienna let the plunging Bellucci-esque neckline speak for itself—her only jewelry an Enchanted Lotus set by De Beers that, by VFF standards, is wholly understated—and kept her Armani shades on throughout the photocall, giving off the vibe of a 1960s Cinecittà star whose messy divorce recently outraged the Pope. No doubt Miller will be back in her Maxine wedges the second she touches down at Heathrow, but for now? The Lido looks good on her.