The act of shooting a film is characterised by discontinuity in the production stages and numerous unpre-dictable events, as well as a host of unscheduled initiatives and the emergence of disputes arising fromcreative experiment. It is the task of the script supervisor to maintain the “film continuity”, which governsthe quality of the editing and the plausibility of the final screen product. This demands intense scriptingactivity to maintain a record of the production stages. These writings are the “effective” trace of a complexactivity that achieves its full meaning in the dense but discreet relational work arising out of the scriptingprocess. We will show how, in a fragile organization such as cinema, cooperation in work can be perceivedas a metrological activity of adjustment that contributes to the creative process.© 2014 Elsevier Masson SAS. All rights reserved.