When Elliott, played by Maisy Stella, skips a family birthday dinner to take magic mushrooms with her friends in the woods, it may feel like a set-up for a coming-of-age comedy. And on one level, “My Old Ass” is precisely that: a funny look at Elliott at a turning point in her life when she meets Chad, played by Percy Hynes White, just before she leaves her small-town home for college in the big city.
Yet at the Sundance Film Festival this year, audiences were weeping, too. The movie’s hook is that, as she’s tripping, Elliott