Piedra de toque
Carlos, un joven racista, viaja a Guinea para visitar las propiedades de su padre.
Starring Arturo Fernández, Susana Campos, Ángela Bravo, Roberto Camardiel, Alfonso Godá, José María Caffarel, Ángel Ter, William Marshall, Pilar Gómez Ferrer, Juanita Giménez
Watch "Piedra de toque" on FlixOlè released in 1963. It's a drama movie, and has a rating of 5.4 out of 10 from Imdb which is fairly okay for this kind of movie.