Ein Sonntagskind, das manchmal spinnt (1978)

10-year-old Kathy Montag moves to a big city in Brandenburg. Before that, she lived in the Harz Mountains together with her father Peter. Her mother has died a few years ago. The girl finds her new home very exciting, and since Kathy takes an interest in everything she encounters, she keeps finding herself in peculiar situations such as a brigade party or the shooting of a historical epic movie. Her classmates consider her an oddball and even her father is unhappy about his daughter′s development.

Unfortunately the movie Ein Sonntagskind, das manchmal spinnt is not yet available on HBO Max.