Participatory methods in design or innovationresearch can require several different kinds of datain order to cover the object or process of interest tothe study. This paper addresses the potential anddifficulties of joining and analyzing several datacategories into a unified observational video, whereall data is represented in either audio, visual oraudiovisual form. The core problem of such acomplex body of data is that the analysis requiresefficient tools and/or methods to match the datacomplexity. The current case regards a participatorystudy on film editing, its method and datacomplexity, and discusses analytical approaches.