 The author of the book, Américo Paredes, hated this movie. According  to Paredes, Gregorio Cortez did not shed one tear while he was in  jail and yet, Cortez cries in the movie. Anytime someone would ask  him his thoughts about the movie, he would be so angry about it that  he would refuse to discuss the movie and instead, would have his  wife tell them why he disliked it.