Set in 1940s Italy, “The Children’s Train” (Original title: Il treno dei bambini) is a tragic tearjerker now streaming on Netflix. Co-written by director Cristina Comencini, the film is based on Viola Ardone’s eponymous book. The story follows seven-year-old Amerigo, a boy from a struggling family in war-torn Naples, navigating life amidst poverty and conflict. Subsequently, his single…