I saw this movie for the first time on my HT. Upscaled I thought the picture quality wasn't that great, I've seen better. But the sound was spectacular on the DTS track. I played the movie at my regular volume and it came through louder than I expected. I didn't adjust the volume down as I wanted to see if my speakers could handle it. At various parts of the movie I thought that my speakers might blow from the effects. However no damage was done. Let me tell you I have never heard HT sound this good, I was smiling ear to ear. Money well wasted.
As for the movie I thought the story followed the original movie just as Holst pointed out with some minor changes.