The Last Summer of La Boyita

Jorgelina (Guadalupe Alonso) wants her older sister back, but Luciana has entered adolescence and has no use for little kids anymore. So Jorgelina rides out to the countryside with her father in the family's camper-van, the Boyita, to spend the summer with Mario (Nicolás Treise), the boy she has always played with. Julia Solomonoff lets Mario's body start to change, and the two of them sit in the Boyita as the days run on.