You shouldn't watch it again, as you'll most likely cry more than when you were a kid.

Or maybe that's why you should. Feelings are a nice thing.

I love the new movie Inside Out. There's one scene I'm crying at every time, even though I don't think I would have cried when I was a kid. It's more big emotions as adult and seeing things in an even bigger perspective which may cause crying more. And it's a good thing.