Wind back to the opening of Leos Carax’s first feature, “Boy Meets Girl” (1984), and you find a woman who has just split from her lover, Henri, and taken their young daughter with her. Fast-forward to Carax’s new movie, “Annette,” and you find Henry McHenry (Adam Driver), who at one point, sundered from his lover, Ann Defrasnoux (Marion Cotillard), is left with their young daughter. From “The Night Is Young” (1986), “The Lovers on the Bridge” (1991), and “Pola X” (1999) to “Annette,” Carax has stuck to his story: boy meets girl, and the meeting sends them down into the depths. Plus ça change.
What distinguishes this latest Carax adventure is that it’s a musical. Everybody joins in: major characters, midwives, theatre audiences, and cops. The lyrics, the songs, and,…