Splash Into the Sea-quel with Barbie!

Merliah Summers, a mermaid from Oceana, travels to Australia for a surfing competition. But when she learns that the evil Eris is planning to take over her kingdom, she must stop her at any cost.
In Barbie in A Mermaid Tale 2, consciousness is carried by monsters and creatures — a plane of “mermaid kingdom”. The story fights on E8/E9/E10 of the E0–E14 reality ladder, compressing identity, fear, duty, culture, magic.
Films fighting at the same level of reality, about the same things.
Hotel Transylvania 3: Summer Vacation (2018)E8/E9 · culture, identity
Morbius (2022)E8/E10 · fear, identity
Enchanted (2007)E8/E9 · culture, identity
The Smurfs (2011)E8/E9 · identity, magic
Demon Slayer -Kimetsu no Yaiba- The Movie: Mugen Train (2020)E8/E9 · duty, fear
Onward (2020)E8/E9 · identity, magicThe same preoccupations examined at another scale — one mind versus a nation.
Other films that move a human interior onto the same kind of thing.
Monsters University (2013)consciousness in monsters · monster university
Labyrinth (1986)consciousness in monsters · fantasy labyrinth
Tokyo Ghoul (2017)consciousness in monsters · ghoul underworld
Luca (2021)consciousness in monsters · monster seaside town
Raya and the Last Dragon (2021)consciousness in monsters · dragon-tribe realm
Hellboy II: The Golden Army (2008)consciousness in monsters · mythic warThe same preoccupations carried by a different kind of thing — grief told through the dead, an animal, a machine.
Batman v Superman: Dawn of Justice (2016)consciousness in aliens · fear, identity
Wreck-It Ralph (2012)consciousness in machines · culture, identity
Tinker Bell and the Legend of the NeverBeast (2014)consciousness carried elsewhere · culture, identity
Smallfoot (2018)consciousness in animals · culture, identity
Mowgli: Legend of the Jungle (2018)consciousness in animals · culture, identity
Disenchanted (2022)consciousness carried elsewhere · identity, magicShared director or cast.