Here's a brilliant movie that inspires me and challenges me every time I watch it. On top of that, it seems to invent a new form for movies themselves (rotoscoping has been around forever, but it's never approached high art in this way). Observe the details tucked into the corners. Observe the way the potential of animation is explored and stretched. Observe how the style of the animation shifts to match the subjects.
On the possibilities of human growth:
On being present in the moment:
On perhaps one of the big questions:
And, of course, on how most people who write novels are total pseudo dill-holes.
Just the tip of the iceberg. Go, watch, enjoy.