Darren Aronofsky’s “The Fountain” is a vast, insightful and weird drama. Aronofsky’s works (including “Pi” and “Requiem for a Dream”), like those of Michel Gondry (“The Science of Sleep”), linger and haunt the mind long after credits roll. “The Fountain” is no exception. With its constantly evolving characters, vivid settings and philosophy-meets-science-fiction tone, Aronofsky’s latest…