Operación Ogro is a 1979 Spanish and Italian drama film written and directed by Gillo Pontecorvo. The film is based on true events, following the eponymous book by Julen Agirre (pseudonym of Eva Forest).The film won the David di Donatello (an annual Italian motion picture award) for Best Film. All the actors, a mix of Spaniards and Italians, spoke Spanish in the dubbed version released in Spain, and in Italian in the dubbed Italian version.