International audienceSince December 2016, we have been working on the creation of a performance entitled Les Maîtres fous, in reference to the eponymous film by anthropologist and filmmaker Jean Rouch. This experience was for us the occasion of a singular reversal of roles: the first, an anthropologist, transformed himself into a performer, making films inseparable from the proposal; the second, an artist, adopted a position similar in some aspects to that of an ethnographer, producing writings about the performance in order to better understand the logic of the creative process. Looking back at the elaboration of this performance, situated at the crossroads of living art, cinema and ethnography, we will question the acting force not only ...