Of course, Huppert didnt just grab any old robe on her way out of theHotel du Cap-Eden-Roc.

Huppert accessorized her look to take it from bathroom-chic to something premiere-worthy.

The actor wore a pair of nude, pointy-toe boots, playing by the Cannes footwear rule.

CANNES FRANCE  MAY 19 Isabelle Huppert attends the Horizon An American Saga Red Carpet at the 77th annual Cannes Film…

Photo: Getty Images

We can all learn a thing or two about movie star cool from Isabelle Huppert.