"No questions about age, please." The warning is repeated before interviews with Isabelle Huppert (Paris, 1953), but it is unnecessary: at 72 years old, the great diva of French cinema maintains an admirable vitality and restlessness that are evident in The traveler, his new collaboration with Korean director and cinephile hero Hong Sang-soo, with whom he had already worked on In another country (2012) and Claire's Camera (2017)In the film, which premieres this Wednesday, Huppert tours South Korea offering French classes with a learning method as disconcerting as her attempts at flirting with her students. "I had a great time in these scenes; they're very funny," the actress admits.