One of the castles that Zog searches for a princess to rescue is a copy of Castle Neuschwanstein, the same castle that originally inspired the Disney fantasy castle.
Axel Scheffler has hidden a Gruffalo in most of his works with Julia Donaldson, which have been mirrored in the adaptations. In this, the Gruffalo can be seen as a coat of arms on the horse's armour.
First screen adaptation of a Julia Donaldson book that does not feature Rob Brydon in its main cast, although he does provide voices for background characters.
Several characters resemble those from other Axel Scheffler animations, including a squirrel (Gruffalo) and a frog (Room on the broom).
The red dragon could be a younger version of the dragon from room on the broom as they have similar features.