Useless-Knowledge.com: Looking at the words of the song generally, I’d guess that the meaning (of Guantanamera) is, “A Song of Guantánamo”, rather than “A Girl of Guantánamo”, as Wikipedia translates it. There’s nothing in the lyrics about any kind of girl. This is a song of compassion and humility.
Everything2.com : A version of “Guantanamera” sung by Pete Seeger figured significantly in the plot and mood of Don McKellar’s “Last Night”, a 1998 movie that follows individual people preparing for the last six hours of their lives as the Earth faces oblivion from an unstated but absolutely inevitable and unavoidable oblivion.
folkmusicabout.com : When Seeger and Hays wrote “If I Had A Hammer”, it was a bit of anthemic support for the emerging progressive movement, which was focused heavily on labor rights, among other things. The lyrics allude to the labor movement, taking symbols from the work place and turning them into calls for action toward equality.
Answers.com : In 1959, film director Marcel Camus asked Luis Bonfa to contribute some songs to his film version of the play Orfeo do Carnaval (to be renamed Black Orpheus on the screen). The director originally rejected “Manha de Carnaval” as the film’s main theme, but after coming up with what he felt was an inferior second effort, Bonfa fought for his first tune and got his way.