Her first film, Children Make Movies (1961), was about a film-making project at Lillian Wald's Henry Street Settlement in Lower Manhattan.
Her book, Hand Held Visions: The Impossible Possibilities of Community Media, was published by Fordham University Press.
In 1990, before the first Gulf War started, she worked with a team of Paper Tiger and Deep Dish producers to create a series on the impending war, called The Gulf Crisis TV Project which ultimately produced ten half-hour programs which were widely shown on Public-access television stations, film festivals, the Whitney Museum, Channel Four in the UK and NHK in Japan.
She is currently finishing a four-hour compilation of speeches and interviews from the World Tribunal on Iraq, which Deep Dish filmed in Istanbul in June 2005.
That work evolved into the television version of Democracy Now!, the Pacifica Network daily radio news series.
After retiring from the University of California in 2001, Halleck worked full-time for a year (on a volunteer basis) to create the infrastructure and resources for Democracy Now!
This daily news program is now on over 650 community television and radio stations and on the Dish Network of 15 million subscribers via Freespeech TV.