Espoir: Sierra de Teruel (English title: Days of Hope or Man's Hope) is a 1938–39 Spanish-French black and white war film, directed by Boris Peskine and André Malraux.
Malraux wrote the novel L'Espoir, or Man's Hope, published in 1937, which was basis for the film.
The crash of a Spanish Republican Air Force Potez 540 plane near Valdelinares inspired André Malraux to write the novel.
It was finished in July 1939 and shown twice in Paris, but Francoist Spain applied pressure to censor it.
Spanish Republican forces fight against the better-equipped Nationalist armies in the desolate Sistema Ibérico mountains of the Province of Teruel in 1937.