So far, none of the major horse movies have disappointed me. I've always found them to be a safe bet for a rental. Seabiscuit, Flicka, Hidalgo, Secretariat, Black Beauty, Black Stallian, War Horse, etc. were all pretty good and worth a watch.
Yesterday I went out to see Red Tails (story about Black WWII fighter pilots) with some family members that had made the trip to visit us. It was ok, and a good film for the big screen. It was worth the drive, time, and ticket price to see it at the movie theater, and normally I feel robbed when I go to a theater. Get off your ass and see it. You won't say it was the best movie you ever saw, but you might agree that it was worth it. I don't get out much, but I finally did for this, and it was alright.
Don't forget to live before you die.