This movie is a kids movie that probably came out in the 90’s or early 2000’s. Set in a forest, these two kids, a boy and a girl, have to somehow get the horses of the world back from the villain in the movie. They are searching in the woods to find missing key parts that are given to them by riddles. The horses were locked away in a door in the woods. I also remember a lake in this movie. It is by no means mainstream but any help at all would be great! Thanks!