Flicka (2006)

Katy McLaughlin desires to work on her family's mountainside horse ranch, although her father insists she finish boarding school. Katy finds a mustang in the hills near her ranch. The headstrong 16 year old then sets her mind to tame a mustang and prove to her father she can run the ranch. But when tragedy happens, it will take all the love and strength the family can muster to restore hope.