La sangre y la semilla is a 1959 Argentine-Paraguayan film, directed by Alberto Du Bois. Produced in Spanish and Guaraní, it was shot in the Paraguayan city of Itauguá. It stars Argentine actress Olga Zubarry and the Paraguayan Ernesto Báez in the leading roles. Written by Augusto Roa Bastos, based on a story by Mario Halley Mora, it is a historical film set in 1870 at the end of the Paraguayan War, during the exodus of the last followers of President Francisco Solano López to Cerro Corá (1870). The film premiered on 12 November 1959.