Harry Alan Potamkin (1900-1933) was a poet, social worker, publisher, revolutionist, and a critic of cinema, literature and society. His poems appeared in magazines such as The Fugitive, Tambour and Transition; workers' newspapers such as The Liberator, New Masses and the Daily Worker; and Black newspapers such as The Crisis and Opportunity. At the time of his death, he was widely acclaimed for his film criticism, which appeared in publications such as Experimental Cinema, Hound & Horn and Close Up. He was the Executive Secretary of the John Reed Club. His writings on cinema were previously published as The Compound Cinema: The Film Writings of Harry Alan Potamkin (Teachers College Press, 1977), compiled by Lewis Jacobs. Stephen Broomer is a filmmaker and film preservationist.