it is important for me

I'm a looking for a movie about two sisters. It flew in the cinema so where in 2002-2003 and a first sister was bad, second sister was good. This bad had a scarf and the people were bewitched this scarf. Good sister had a horse and she very liked this animals.Unfortunately bad sister killed her horse. I hope that someone know title this movie or help me find it ? If yes it so much help please. Thank you in advance.