"Four Days in September" is a film that most here in the United States know nothing about--even though the film is a recreation of the real life kidnapping of the US ambassador to Brazil back in, 1971. Frankly, here in the States, we know very little about the country and many people I know think they speak Spanish there! It's sad and those who DO know a bit about the country get it from films like "City of God"! Because I am a history teacher, I was thrilled to learn more about the political turmoil in Brazil in the 1970s and their military dictatorship--as, I hate to admit it, my knowledge of the country is lacking. And, for me, the most surprising thing about the film was to learn that this government was in place all the way until 1989! Wow.
As for the film, it's a recreation of the evens leading to and following the abduction of the American ambassador--with a strong emphasis on the motivations and reactions of the younger members of this Communist group, MR8. Aside from a case of very capable Brazilian actors, American actor Alan Arkin is on hand as the ambassador. Overall, the film is excellent for many reasons. The script and direction are very good (without a lot of politics and without a strong bias) and the acting very good. In fact, I have no real complaints about the film, though I wonder about the further adventures of MR8--the film really had me wonder about the decades following this kidnapping.
By the way, though the film is about communist revolutionaries, the film is handled in a relatively dispassionate way and can be enjoyed by anyone regardless of their political orientation. It did seem to paint these leftists somewhat favorably, but not in a manner that seemed overly sentimental or biased. Plus, it did show the characters on the right as well--a smart move in the long run. Well worth seeing.