The congress on the Dialectics of Liberation was an international congress organised in London between 15 and 30 July 1967. It was organised by the American educationalist Joe Berke. The scope of the conference was to "demystify human violence in all its forms, and the social systems from which it emanates, and to explore new forms of action". A short film, Ah, Sunflower, directed by Robert Klinkert and Iain Sinclair, and featuring R. D. Laing, Allen Ginsberg, Stokely Carmichael and others, was filmed around the Dialectics of Liberation conference.