A Piggy Tale (1991)

Dolly, a lovely, adorable little girl from the mountain region. Due to the death of her parents, she was sent to her parents' friend, Mrs. Chu's care. When Dolly and her mini pig playmate, Guava, first came to Taipei, they brought a great change in the life of the Chu family and created a series of thrilling amusing incidents. One day, Papa Chu brought Guava to the office but negligently lost it. When Dolly heard that Guava got lost, she was very sad and decided to leave home to search for Guava. In order to help Dolly, Chu Pi, Papa Chu's son, called his buddies to join Dolly in the search of Guava. An interesting, worrying search journey by a group of children began...

Unfortunately the movie A Piggy Tale is not yet available on HBO Max.