[2] In the 1970s, together with Rosine Grange, Ostrovsky founded the non-profit organization Ciné-Femmes International (first called Femmes/Media), dedicated to the promotion, distribution and exhibition of films made by women.
They toured with women's documentaries, features, animation short and experimental films, distributing them where needed, much before the advent of formats such as VHS and DVD.
This event was held in St. Vincent, the Aosta Valley, with participants such as Susan Sontag, Agnès Varda, Helma Sanders-Brahms, Chantal Akerman, Mai Zetterling, Márta Mészáros, Valie Export and María Luisa Bemberg.
She is also currently on the Board of Directors of Film Forum, a New York based non-profit movie theater with independent and repertory programming.
[10] Her other activities include: curating film programs for the Centro Cultural Banco do Brasil (CCBB) in Rio de Janeiro, composing several radio pieces for the French public radio station France Culture (Ateliers de Création Radiophonique),[11] and a children’s book in cooperation with her sister Rose Ostrovsky (MUMPS!).