cozmeesah wrote:
I think it makes adults cry because it makes us think about our childhood and the toys we used to have. Kind of like it reminds us of the feeling we had when we had to leave our childhood behind.

I don't think little kids will be upset by it in the least.
This is definitely it.  I couldn't help thinking of how much it SUCKS to grow up!!  

The movie was great, though.