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. During its active years (1975–1979) Ciné-Femmes International addressed the lack of distribution and exhibition opportunities for women’s films.[3] It was the only organization in France at the time to initiate film screenings, programs and symposia, focusing on women's filmmaking and on women’s image on film. 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. In 1975 - declared International Women's Year by the United Nations – Ostrovsky, together with Esta Marshall, organized a major women's film festival in Paris (Femmes/Films),[4] as well as an international symposium – Women in Film - under the auspices of UNESCO. 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. An international association, Film Women International, was the outcome of this venture.[citation needed]
In 1980 Ostrovsky launched into experimental filmmaking with a debut film, Carolyn 2, co-directed by Martine Rousset and starring choreographer Carolyn Carlson.[5] Since then, Ostrovsky has made over 30 films mostly shot in Super-8, often incorporating found footage such as newsreels, excerpts from feature and documentary films, as well as personal home movies. As described by yann beauvais, Ostrovsky's films combine two genres of experimental film – the film journal and the film-collage – creating her unique version which beauvais names 'journal-mosaic'.[6] Her films are often referred to as nomadic as they cross between countries, cultures and subject matters.[7]
Following her father, George Ostrovsky, who was one of the founders of the Jerusalem Film Center in Israel,[9] Vivian has been active as a member of its board of directors and is one of the film curators for the Jerusalem Film Festival held yearly by the Jerusalem Cinematheque. 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!).[citation needed]