Invented by the post-New Wave, the exercise is well-known: put a filmmaker in the frame, make him talk about his career, evoke his admirations, rummage in his methods, and add words to silences, spoken images to seen images. It's always very instructive. As is the case here too. Chantal Akerman, passing through South America, talks about herself for an hour, and it's fascinating. Even if her recalling of the relationship between the cinema and time makes up only a few rare minutes.