In recent years the way we produce new media has changed dramatically. Interactive nonfiction narratives have transformed the processes of producing, distributing and showing documentaries, and especially the processes involved in how the viewer relates to the text. One of these new media forms of narrative expression is “interactive documentary”. In this work, first, we explore the evolution of the documentary genre as an expression form, then we analyse the current state of development of the interactive documentary. Second, we analyse five representative projects from different critical perspectives: production, interface, content and modalities of representation. Finally, we outline a set of issues that emerged from the analysis performed that need to be resolved.