Alexandra Saint Mleux nods to her Paolo Sebastian wedding dress at Cannes

Charles Leclerc and Alexandra Saint Mleux made their first public red-carpet appearance as newlyweds at the 79th Festival de Cannes, and Saint Mleux used the moment to do what the smartest brides do after the ceremony: translate the wedding look into something you can wear again. For the La Vie D’Une Femme screening in Cannes, France, she stepped out in a Paolo Sebastian gown, while Leclerc kept to a classic tuxedo, a clean counterpoint that let her dress do the talking.

The choice landed because it was not a costume repeat. Saint Mleux did not recreate her bridal gown piece for piece, but she nodded directly to it in the same designer, the same romantic sensibility, and the same sense of polish that made her civil-wedding look memorable in the first place. That original Paolo Sebastian dress was custom, cut in French Chantilly lace with a fishtail silhouette and finished with three-dimensional floral and butterfly embellishments. It was also personalized with embroidered initials and the wedding date, details that make sense at the altar and nowhere else.

That is exactly why the Cannes appearance worked as bridal style, not just celebrity style. A reception dress does not need to read “bride” in every stitch to feel special. Saint Mleux’s Cannes turn showed how to keep the glamour while dialing back the literal wedding signals: a refined silhouette, disciplined embellishment, and a designer with a recognizably ornate hand. The result is the kind of look that makes sense for a civil ceremony, a reception entrance, or even a honeymoon dinner when the brief is elegant, not overexplained.

The timing sharpened the story. Reports place the couple’s civil wedding in Monaco on February 28, 2026, and fashion coverage had already framed Saint Mleux’s bridal look as one to watch because of the Paolo Sebastian connection. At Cannes, that thread came full circle. Leclerc arrived with an added fashion credential of his own, newly announced as a L’Oréal Paris global ambassador, while L’Oréal Paris marked Cannes 2026 as part of its long-running presence at the festival since 1997. But the lasting image was Saint Mleux in a dress that felt bridal without becoming boxed in by bridal convention. It was a reminder that the best post-wedding fashion keeps the romance, then gives it somewhere new to go.