Continuity mistake: At the arena, when Scooby's blue suit bursts, the ground is covered in small blue pieces that disappear in the following shots.
Other mistake: In The Croods, Guy was handing out bananas and gave one to Grug, which he threw away. But in this film, he does everything to get this mystical fruit that he hasn't had since his childhood.
Continuity mistake: Tim is showing the Nanny's phone to the others. He plays the message from his parents, but does it tapping the bottom part of the touchscreen, while the media file and its "play" button as established in previous views, is at the top. Likewise, when he turns towards Jane asking "Do you want to be taken care of?" he is pointing at the bottom of the device, but in the reverse shot his finger is at the top. (00:43:30)
Deliberate mistake: In the Spanish release, the name of the family store is written in Spanish, but inside the place it's in English everywhere. This is a very common mistake in foreign kids' films released in Spain.
Deliberate mistake: In the Swedish dub, they euphemistically replace the words "execution" with "punishment."