The laboratory tests and complex work involved in constructing the dam in the Lei Valley are described in detail to give an idea of the complexity of building the Lei Rhine dam. Among double-curved arch dams, this one has the widest crest in the world. The construction of the dam is punctuated by the long speeches and anecdotes of an elderly master builder.

A Donatello Golden Plate winning documentary on the Appenines, and on the adventures of a young racoon.

An accidental interruption of the S. Giacomo Electric Line requires the intervention of a team of specialized technicians. The short movie follows these men to the place of intervention, dwelling on the beautiful snow-capped landscapes and the local inhabitants engaged in their daily activities.

This documentary shows the construction of a high-altitude dam by the Sabbioni Glacier, and the daily struggles of the workers, now anxious for the outbreak of a mine, now silent for the nostalgia of the distant family.

The story of the Stura River, bent by human ingenuity. The disorderly course of the river and the dam, resembling a 200-meter-long concave hand, are the tools necessary for energy production.

At the end of the war, he was hired by Edison and in 1951 he made a film on all the important hydroeletrical plants built in that period. In the following years, Olmi directed around 40 documentaries, including La diga del ghiacciaio, Pattuglia di Passo San Giacomo, Tre fili fino a Milano, Michelino 1aB (written by Goffredo Parise), Manon finestra 2 and Grigio (whose screenplay was written by Pier Paolo Pasolini).

The story of Michelino, who enrolls in Edisonvolta's electrical engineering school and thus opens himself up to the future.

A conversation between a salesman of calendars and his costumer, who makes him several questions before considering buying one of his offers.