The reason being is that how true it would be if one of us had never been born. Each one of us does, even if in a minute way, affect other people in someway.
Another reason is, that without fail the last 10 minutes always makes me cry.
Btw, if you want to view the very last 10 mins of that film go visit my profile as I have the video of it on there as part of my Christmas skin.

. I love
it.