A Troll in Central Park (1994)

Synopsis
This animated feature from Don Bluth is aimed toward very young children. It follows the exploits of Stanley, the nicest troll in Troll Land. Unfortunately, the other trolls do not like too much niceness, and Stanley is banished from his homeland by the nasty Gnorga. He is sent to live in New York City with the hope that the banishment will cure him of his sweetness. Stanley lands in Central, where he puts his special talent for growing pretty flowers to good use. There he meets two sad youngsters whose parents are too busy working to pay attention to them. Stanley becomes their friend. He teaches them to believe in themselves. Stanley is happy. But then, Gnorga suddenly appears and tries to destroy it all. Will she succeed? ~ Sandra Brennan, All Movie Guide