Ella Enchanted

In the kingdom of Lamia, baby Ella of Frell is given the "gift" of obedience by misguided and obnoxious fairy godmother Lucinda Perriweather, causing her to instantly obey any command she is given. On her deathbed, Ella's mother-(who has contracted a terminal illness) warns her not to tell anyone about the gift, for fear that someone might use it to exploit Ella.