BirdWatchers Italian La terra degli uomini rossi is a 2008 BrazilianItalian drama film directed by Marco Bechis. It depicts the breakdown of a community of GuaraniKaiowa native Indians whilst attempting to reclaim their ancestral land from a local farmer.
The songs Sacris solemnis and O gloriosa virginum were composed by the Italian Jesuit Domenico Zipoli who went to South America to live at the Jesuit Reductions.
Source: Wikipedia