Iron Giant definitely made me bawl.
Charlotte's Web, about the 3rd time I saw it when I was ten, when I realized what happened to charlotte.
The Notebook
Dear John
Its not quite a movie, but the ending to Crisis Core(video game) made me cry.
7 Pounds and The Pursuit of Happyness.
The Phantom of the Opera
Edward Scissorhands
and Artificial Intelligence. I only saw the end, but for some reason that was enough.