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 Aguirre (pseudonym of Eva Forest).
The film won David di Donatello as 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.
Operación Ogro ("Operation Ogre") was the name given by ETA to the assassination of Luis Carrero Blanco the then Prime Minister of Spain in 1973 and the successor of Francisco Franco the then Spanish dictator. This attack was carried out on 20 December 1973.
An ETA commando group using the code name Txikia (after the nom de guerre of ETA activist Eustakio Mendizabal killed by Guardia Civil in April 1973) rented a basement flat at Calle Claudio Coello 104, Madrid on the route over which Luis Carrero Blanco used to go to mass at San Francisco de Borja church.
Over 5 months, this group dug a tunnel under the street - telling the landlord that they were student sculptors to disguise their real purpose. The tunnel was packed with 80 kg of explosives that had been stolen from a Government
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