I watched it, and it was amazing. A solid 9.3/10 (spoilers to follow)
The only parts I didn't like were the boys being caught in the windmill, the horse being run over, and how gushy the boy was at the beginning of the film. The barbed wire was pretty make believe.. and why would a tank go after a horse anyway.. just dumb.
LOVED the part where the german and englard (made that up) joined up to cut him free of the wire :) And how the girl was trying to teach him how to jump and hid them in her room.
SO cute the bond between the black horse and Joey.
Lovely lovely movie. Made me miss my horse so much, I did cry.