A nameless member

Trivia: Olaf looking for his friends and ending with "Sven? Samantha? I don't even know a Samantha!" may well be a very obscure reference to the BBC radio comedy panel show "I'm Sorry I Haven't a Clue". The (fictional) scorer Samantha is occasionally "replaced" by an equally fictional scorer called Sven.

Trivia: During "Into the Unknown", Elsa spins around and makes a circle of ice. Two other circles briefly appear above it, making a "hidden Mickey".

Trivia: The "new Danish author" that Prince Agnar is reading is most likely Hans Christian Andersen, who wrote "The Snow Queen", the basis of Frozen.

Continuity mistake: When Anna's singing "The next right thing" she puts a bag on her shoulder, with the strap on top of her hair. After the camera spins round her, her hair is suddenly on top of the strap. This bears a strong similarity to the mistake in the original Frozen where Elsa's hair passes through her shoulder - might be a deliberate nod, or else animating hair around objects is difficult enough that shortcuts are often taken.