Adaptation Displacement: The movie is infinitely more well-known, largely due to its songs and, of course, its ending, than that of Ethel C. Pedley's novel. This, sadly, is why many people are left unaware that the endings of the novel and the movie are completely different.
Big-Lipped Alligator Moment: The Bunyip Song comes completely out of nowhere, with the subject matter never spoken of again. With that said, it's so freaky that it's one of the most remembered parts of the movie.
Moe: What do you expect from a little girl in a yellow dress who goes barefoot and loves animals?
Jerkass Woobie: Funnybunny. He spends most of Dot And the Bunny unsuccessfully trying to convince Dot that he's a joey and in general acts like an irritable brat, but at the climax of the movie, he breaks down in tears and tells Dot that he was orphaned by hunters and is only pretending to be a joey to find a new mother.
Nightmare Retardant: When it finally appears in Dot and the Smugglers (and acts as a crucial plot point, with the titular smugglers trying to find and capture it), the Bunyip turns out to be not nearly as scary as the first film made it out to be.
Adult Fear: It's bad enough the first film revolves around Dot losing her way in the woods unattended and the obvious distress her family go through trying to find her but think about what happens to her in the sequels.