This has always been an all-time favorite of mine. The execution was realistic enough to make me shed more than just a litre of tears. The story developed as naturally as one sleeps and wakes. I guess I liked it so much because it was somewhat relatable to me. And I think it gave me such a valuable perspective back when I was younger. The story and execution left such a huge imprint on me that even without actually re-watching it, I could remember almost every scene.