Desc: Les années Sigma: la provocation amoureuse: Directed by Jean-Philippe Clarac, Olivier Deloeil. With Roger Lafosse, Jean-Louis Aucouturier, François Barré, Bartabas. Between 1965 and 1995, the Sigma Festival turned Bordeaux, France, into a pivotal meeting-place for cultural avant-gardes and utopias in Europe. The film revisits the magnetic aspect of this most colorful festival, which marked the city's cultural history, its time and the recent history of festivals.