I believe this movie deserves a better score. I didn't quite understand it myself when I watched it for the first time, but I slowly digested it. The core of this story is "if" and "pity". We miss so many chances in our lives, we feel sorry, we regret, and we cry. This movie gives us a chance to catch all the "if"s and correct the unconscious mistakes. However we'll never be able to correct all the mistakes and we even make more new mistakes during this process. We feel empty and lonely. This is life, the mistakes and pity make life what it is. There's always beautiful scenery on the way besides the fireworks. When we become peaceful with life, we grow up.