Since the 1980s, famed cellist Sonia Wieder-Atherton has been present in much of Chantal Akerman’s work, whether through her numerous collaborations soundtracks, or as a protagonist (as in Rue Mallet-Stevens, 1986), or in this case, as the subject of an extended documentary portrait. The film begins with a voiceover from Akerman, describing and situating her subject, after whic...