Isabelle Huppert was, of course, in attendance for the closing ceremony of the 2026 Cannes Film Festival on Saturday. Stephane Cardinale - Corbis/Corbis via Getty Images Having worn far less Balenciaga than I expected from her during this festival, the French actress closed things out wearing a Spanish label instead, stepping onto the red carpet in Loewe. At first glance, some might say this black…