Songs and a great role by Dwayne Johnson

“I am not a Princess!” protests the young heroine of “Moana,” right in the middle of her hero’s quest to fulfill her destiny.

Her spirit is exuberant and the setting is novel, but the trickster demigod Maui, voiced by Dwayne “The Rock” Johnson, has a clear, honest appraisal. “You’re wearing a dress and have an animal sidekick, you’re a Princess.”

It’s hardly a knock against “Moana” to suggest it has throwback elements. Its first half hour is old school Disney: a teen daughter on a Pacific island (voiced by newcomer Auli’i Cravalho) yearns to travel out to the sea, but her father, the village chief (“Star Wars”‘ Temuera Morrison) demands she stay on land to watch over her people.

Think of it as the inverse of “Little Mermaid,” which makes sense since “Moana” directors Ron Clements and John Musker made that film.

Moana is, of course, a “chosen one,” as the stars of all kid movies are these days. Her island’s food supplies are drying up because of a curse accidentally caused by the meddling Maui. If Moana can sail across the gorgeously rendered blue sea and convince the powerful Polynesian pest to return a gemstone to a lava monster – basically return the One True Ring to Mount Doom – all will be well in Moana’s oceanfront Shire.

The story may not be so original, but it’s the details that shine. Moana is a strong, determined and funny young woman, and Johnson is outstanding as her pompous but crafty, tattooed partner. Yes, The Rock can carry a tune and his big song-and-dance number “You’re Welcome” is a hoot.

The music doesn’t offer “Frozen”-levels of goosebumps but the songs, co-written by “Hamilton”‘s Lin-Manuel Miranda, put wind in the sails of this way-finding adventure. There’s also that animal sidekick (a gloriously dumb chicken) and an original, big concept character: the guiding force of the ocean itself.