Oh la la!

French actress Clemence Poesy arrived at the "Pirates of the Caribbean: On Stranger Tides" premiere during the Cannes Film Festival on Saturday in a very glamorous pale blue gown.



She opted for a detailed off-the-shoulder dress -- we adore the lightly embellished neckline, demure train and jewel encrusted belt. The "Gossip Girl" toted a Yves Saint Laurent minaudiere and added peep-toe pumps, also by the French designer. A playfully edgy Repossi Neree gold ring completed her ensemble.

Poesy chose an au naturel look for her makeup and hair. Paired with her fair complexion, the rosy blush and pink pout made her look radiant. Plus, loose and beachy waves were youthful and a perfect fit for the neckline of the dress.

Meanwhile, Poesy was also on-trend in a feathered frock last week.