In [partial] answer to a query about a contact person for an African film
society in Atlanta, GA:
You may want to contact The Association of Moving Image Archivists (AMIA).
Their web site:
The sixth annual AMIA conference will be held in Atlanta, December 3-7,
Tom House, University Archivist, University of New Hampshire
Lisa R. Wood, Audio-Visual Archivsit, University of Kentucky
I hope this helps.