In May 1980 the Italian Radio and Television, RAI, put on air on the TV national network a program on the water, a very hot topic. The proposal to RAI of that really interesting topic came by the talented director of documentaries Carlo Alberto Pinelli. Always very attentive to the socio-cultural issues, now Pinelli has got credits for over one hundred and twenty documentary-investigations. The shooting of "Il Pianeta d'Acqua" brought him to travel a good part of the world. Maestro Ennio Morricone was requested to compose the score for this documentary. He had shown his incredible artistic feelings in the music field and was already famous for his inimitable musical compositions. The subject deeply involved the emotions of Morricone who composed a musical score very passionate and perfectly fitting the scenes contributed to the remarkable success of the five episodes serial.