Princess and the Pony

It's about a princess who has kidnappers trying to catch her, and she gets dropped off at her aunt place I think. She doesn't use her real name and goes to school and she falls in love with a cream/white pony named Echo.

From Amazon:

When a privileged but sheltered princess (Fiona Perry) is threatened by a breach of palace security, her mother the Queen (Kim Little, in her first Asylum flick since 2009's Countdown:Jerusalem) makes the decision to send her to America where she has an aunt (Bobbi Jo Lathan) living in the heartland, far from suspicious or pernicious eyes and hands.

Once there, immersed in the decidedly plebeian culture, forced to pretend she is the opposite of herself, a normal little girl, our princess naturally has trouble making friends, at least of the human variety; when she discovers a carnival pony, however, it's love at first sight.

But this love is soon threatened when the ne'er-do-well carnival owner (Bill Oberst Jr.) discovers her true identity, thus her true worth.