The object of the study is the movie "One Hundred Days after Childhood", one of the most famous Soviet films of the mid-1970s, dedicated to school and schoolchildren (the so-called "school cinema"). The subject of the study is the cultural meanings new to this genre, broadcast by the film, the phenomena of Soviet culture that made this broadcast possible and significant for Soviet cinema, as well as the expressive means of the film, indicating changes in Soviet culture and, in particular, in pedagogical strategies compared with the early 1960s ("thaw era"). The purpose of the study was to identify the role played by this film in the development of the theme of the school in Soviet cinema, as well as to establish those trends in Soviet culture of the 1960s and 1970s that made this development possible. As the main research method, a theoretical and cultural analysis of the most significant elements of the plot was used, representing both the key ideas of the Soviet "school cinema" and the most significant phenomena for Soviet culture of the 1960s and 1970s. As a result of the study, the role of classical Russian literature in the education of the most significant human qualities of Soviet schoolchildren for the period under consideration was established. In addition, the very fact of the appearance of this film suggests that the model of socialization peculiar to the Soviet school up to the early 1960s has lost its relevance, and the new model was still in the formative stage.