I read recently "The songs that my mother taugh me" the auto-biography of Marlon Brando. When he remember this movie, he said that he made all that he could for re-write the script, and he tries even when the film was in his final editing, to do a script that told THE TRUE, about Cristopher Columbus, and the "discover" of the new world... The REAL history.
He was very disappointed and in fact he predicted that the film at the end, will be shameful.
This is what happens when Hollywood hears the producers in love with the money and not to a genius with 35 years of experience.