The day Penelope Cruz had to do Salma Hayek's hair and makeup in the dark for a premiere. “We did it with candles, and it didn’t go bad!” he remembers with a laugh.

A passion for aesthetics and skills that the Lancôme muse would have developed during her childhood, thanks to her mother. "Somehow, with everything we've seen over the years, curl, dry, cut, straighten or curl, we've learned to do it too," she says.