The problem is...
Actually, the filesize isn't that big a deal. The biggest problem is that I think since all the pictures are pretty hi-res, lowering the quality doesn't affect them, for some reason, and my computer, for example, encounters HUGE slowdowns. From the scene where Frodo's in Mount Doom the thing started lagging and then I tried to pause it and the image got stuck on the little music intermission. But the sound went on for probably the whole movie. ARGH! Is it possible to fix it so that it runs on slower computers too?