This is just my personal opinion, but having seen it and also having gone into it with the mindset of
A. It's a Spielberg film therefore its gonna be friggin sweet
&
B. It has war in the title, which means there will most likely be some big battle scenes with said horse running running the gauntlet of the WWI Trenches..
All i can was that i enjoyed the popcorn more than i did the movie. If you've even seen the movie black beauty, it's almost exactly the same premise as that. Only about 10 minutes of anything to do w/ WWI.
Perhaps a good date movie or one for the older kids who like horses, but other than that, i'd say save your money and rent it when it comes out. I was sadly disappoined in this as i was really hoping for more war-horseness, not black beauty gets drafted. I did enjoy the 15 secs where they showed a tank though.