Edit: The Fountain: it's "Pi" meets "The Matrix" meets "Terms of Endearment."
The main problem with the movie is that it's so subtle. My dad didn't get that the bubble was a spaceship, among other things. I had to cheat and read wikipedia to fully understand the plot. The other problem is that ultimately, it doesn't say much. Or if it does, i didn't catch it. But still, I can't wait to see it again. One of the weirdest movies I've ever seen. Science Fiction at its finest.