Relatively speaking, the horse, Lucky, is acting quite well all along. The script, and the direction, might not have helped the other creatures, especially the ones usually capable of speech. They may have been intimidated by the music though, that totally redefines the meaning of the word "cheesy" and might have been played directly on stage in an attempt to stimulate the actors.
Still, I managed to go through, doing other benign little things on the side. No one has been hurt in the watching of this movie. Hence 4 stars.