The film "Valentin" (2002) tells the story of Valentín, an 8-year-old boy living with his grandmother in late-1960s Buenos Aires, who dreams of becoming an astronaut. He navigates the complexities of his family life, including his father's anti-Semitic behavior and his mother's absence, with the help of friends like his uncle Chiche and piano teacher Rufo. Valentín also finds solace in learning about Che Guevara and the ideals he represents. As he grows up, Valentín makes a thoughtful gesture to improve his grandmother's life, but ultimately faces another loss.