Ico, the Brave Horse (1983)

Name: Ico, the Brave Horse
Genre: Animation, Adventure, Drama, Family, Fantasy
Released: 1983-07-09
Duration: 85 min
Cast: Susana Klein, Enrique Conlazo, Maria Marchi, Pelusa Suero

A young horse wishes to be one of the king's horses, and while trying to achieve it, finds out that one of the king's horses mysteriously disappear every night.