In some shots, when characters get close to the edge of the screen, their bodyparts start disappearing due to the screen and the animation layers being cropped badly. This happens in all cartoons produced by the studio.
After the hedgehog says goodbye to Mrs McDonald, the narrator says that he is waving. However, the hedgehog is not waving.
The narrator uses the plural for "goose" "gooses". Geese is the correct plural.
When Lucy, Lionel and Laureen say goodnight and fall asleep, the music warps.