NATALIE PORTMAN will narrate the Disney feature film “Dolphin Reef,” to be released on Disney+, the studio’s upcoming streaming service.

Created by Disneynature, the new Disney-branded film label, and directed by Keith Scholey, the pic centers on Echo, a young Pacific bottlenose dolphin who can’t quite decide if it’s time to grow up and take on new responsibilities. That is, until he can’t resist the many adventures the ocean has to offer.

“Disneynature takes audiences to spectacular and remote places to share remarkable wildlife stories captured by our award-winning film crews,” Paul Baribault, vice president of Disneynature, said Monday in a statement.

“Dolphin Reef” will join the lineup on Disney+, which is set to launch Nov. 12 as a family-friendly service with an expansive library of programming, including the Disney classics “101 Dalmatians,” “Bambi,” “Fantasia,” “Mary Poppins,” “The Sword in the Stone,” “Steamboat Willie” and “Sleeping Beauty.”

In addition to the some 7,500 TV episodes and 500 movies available, the platform will also be home to original programming including “The Mandalorian,” “High School Musical: The Musical: The Series” and the live-action remake of “Lady and the Tramp.”(SD-Agencies)