By Stephanie Nebehay NYON, Switzerland (Reuters) – Noted Brazilian musician Gilberto Gil, who says that struggle has been a counterpoint to his successful musical life, takes a road trip in the film "Viramundo" to seek out his musical origins in Brazil, Africa and Australia. The documentary by Swiss filmmaker Pierre-Yves Borgeaud, which uses the lens of indigenous communities struggling to preserve their cultural identity after colonial rule, premiered on Saturday night at the "Visions du Reel", an international documentary festival in Nyon, Switzerland. …
