Petrang Kabayo At Ang Pilyang Kuting
At the age of 21, Petra will transform into a horse. This is a fulfillment of the curse Silveria, the goddess of horses, put upon Kulas, Petra's father, after she caught him maltreated a horse. And the curse will only be lifted if Petra will do three heroic deeds.
Starring Roderick Paulate, Ice Seguerra, Manilyn Reynes, Janno Gibbs, Tina Paner, Cris Villanueva, Cynthia Patag, Roy Alvarez, Tony Carreon, Bamba
Watch "Petrang Kabayo At Ang Pilyang Kuting" on Amazon released in 1988. It's a fantasy and comedy movie, and has a rating of 7.5 out of 10 from Imdb which is usually fine for this kind of movie, and is currently only available for purchase or rent.