Just found out about this film and about this event on Sunday:
Werner Schroeter made a film (a “delirious biography”) about one of the greatest mezzos in history. The Tiff-Cinemateque has a Schroeter retrospective happening this month and the film is being shown on November 25. The COC’s GenMan Alexander Neef introduces the work.
Anybody seen it? Apparently Foucault was a fan.