His work as a filmmaker has been closely linked to his activities as a political campaigner on the environmental and political issues raised by the 2002 Prestige oil spill, a marine environmental disaster on a scale exceeding the Exxon Valdez incident. His most well-known film is "Awaking of the Nightmare"[sic] ("1-12-2002. A manifestación: O espertar do sono"), about the great Galician nationalist and environmentalist protest rally on 1 December 2002.