I cry all the time in movies...it's bad...but the last Harry Potter really destroyed me in the theatre. I grew up reading the books...but it got really bad in the last movie. Literally cried through 95% of it. Fortunately it was in 3D and the glasses hid some of the tears...
Also, I've never watched pay it forward without bawling at the end. First time I saw it was in 7th grade during homeroom. That sucked...
Bridge to Tarabithia
Not a movie, but there was a shooting not long ago and a little old man stepped in front of his wife and took a few shots for her and didn't fall until the gunman was taken out. I wanted to tell people the story, but I literally couldn't get it out.
I didn't like the notebook...but a walk to remember did it for me.
"When makin' a questionable decision, sometimes the only way to find the answer is to shut your eyes & mash the pedal to the metal, you guys."