One Small Step (2018)

Luna dreams of becoming an astronaut, and her single father, a shoe repairman, backs her from the start, down to a pair of astronaut boots for her sixth birthday. When he dies, she sinks into depression and lets the dream go for a while. The film is honest that grief can knock a long-held plan off course, and just as honest about the way a parent's love keeps working on us afterward. It runs eight minutes, was nominated for the Oscar for Best Animated Short, and Taiko Studios released it free online. Its warmth makes it a good one to watch with a younger teenager who has lost a parent.