It is estimated that the protagonist Gualdino Barros has introduced to the stage close to 500 musicians and singers.
Seven years before start pre-producing "The Ninth Life of Gualdino", director Filipe Araujo published a 7 pages story about Gualdino Barros in the Sunday magazine of Diário de Notícias (Portugal). The article was cover of Grande Reportagem Nº 245 (17-09-2005).