This volume examines documentary films that compel us to bear witness, move us to anger or tears, and possibly mobilize us to action. The essays gathered here analyze questions regarding the usefulness and legitimacy of documentary testimony: What is the value of the historical archive the televised public hearings or activist online videos constitute? Is it made part of the official record, or dismissed as renegade or ephemeral? To what extent can documentary bring about social change? How do the documentary testimonies compensate for or account for the frailty of memory?