

Franco's own propaganda machine accidentally made art he had to censor.
The troubled story of the Churruca family, a noble lineage of brave seamen, descendants of Cosme Damián Churruca, the Spanish hero of the Battle of Trafalgar; from the Spanish-American War (1898) to the end of the Spanish Civil War (1936-39). (In 1950, a new cut of the film was released with less ideological depth and ten minutes shorter.)
Production
Lavish period recreation funded by actual fascist regime.
Writing
Franco co-wrote the screenplay under a pseudonym, obviously.

Director
José Luis Sáenz de Heredia
Trivia, insights & behind the scenes
Franco wrote the source novel under the pseudonym 'Jaime de Andrade' and insisted on screenplay credit, then ordered the 1950 re-edit when the original proved too ideologically messy even for him.
The Churruca family were real Trafalgar heroes; the film's appropriation of their legacy for Francoist mythology remains controversial in Spanish historiography.