Horse movies for a sleep over?

I have a 12 yr old daughter who is hosting a sleep over party next week. Her and her friends finally decided to watch horse movies. She asked me for some help and i didn't really know that many horse movies because growing up i wasn't really into horses like she is. Bella and her friends made a list for me of movies they have already seen. They really want to watch The Derby Stallion but i need some other suggestions as well. These are the horse movies they had already seen... Dreamer, Flicka, Racing Stripes, black beauty, the black stallion, young black stallion, and black jack. I want them to watch an appropriate film pg 13 and under. Thanks for your suggestions1