“Carte Blanche” is a harrowing thriller that explores Spain’s seemingly forgotten Rif War in Morocco, the innate dehumanization of conflict that spurs rampant killing and its impact on the country’s subsequent Civil War. Directed by award-winning filmmaker Gerardo Herrero and based on the novel by Lorenzo Silva, “Carte Blanche” follows an elite unit of the Spanish Legion in 1921 as they set out on an unauthorized mission of revenge. Seeking to eliminate Berber forces in the barren mountains of