Watch FilmoFlix. The movie is about a student in Turin during the 1920s (moved up from the earlier versions) and his love for a a seamstress. The student, Mario, is played by Walter Slezak; the girl Dorina by Carmen Boni. The femme fatale Elena (Elena Sangro) threatens the relationship. When school days end, seen here as a kind of transitory idyll, it is "farewell to youth" as the title states, and a melancholy goodbye to youthful romances as well to allow new lives to take form.