The Oscar nominated animated film Song of the Sea…
“Saoirse is a child who is the last of the selkies, women in Irish and Scottish legends who transform from seals into people. She escapes from her grandmother’s home to journey to the sea and free fairy creatures trapped in the modern world.”
Via Wikipedia – “Two children, Ben and Saoirse, live in a lighthouse by the sea with their father, Conor, who remains distraught over the loss of his wife several years earlier. Though Ben is aware of the responsibility that comes with being a big brother, he is easily frustrated with Saoirse, who, at six years old, has yet to utter a single word. When Saoirse discovers a shell flute that used to belong to their mother, the spellbinding music she creates becomes both a means of communication and the key to a magical secret locked deep in their mother’s past. One night Saoirse is taken into the ocean by a group of smiling seals wearing a shiny, mystical coat that belonged to her mother. It is then revealed that she is a beautiful white Selkie – a mythological being that lives as a human on the land and as a seal underwater – who has a mission to accomplish. After they are sent to live with their granny in the city, Saoirse and Ben must work together to find their way home. Ben soon realizes that his sister holds the power to bring the ancient stories their mother told them to life — but in order to keep these tales alive, she needs to find her voice, and he needs to overcome his deepest fears.”
Check out Song of the Sea on IMDB!