This is a remarkable film... powerful, heartfelt, dramatic, even spiritual at times. It is also filled to overflowing with beauty and a technical brilliance, seamlessly integrating traditional animation with computer effects. If you've not seen it, I can't recommend it strongly enough. Sadly, it's rather neglected. In truth, it's a modern animation classic. Digitally assembling backgrounds from this movie was not easy. Nearly every frame is filled with special effects overlays and animation…