"Up" definitely triggered the strongest emotions in me of any movie to date. Perhaps it reminded me of the loss of my grandma a few years earlier.

The first ten minutes made me so upset that I spent the rest of the movie fighting my body so that I wouldn't start bawling. It would have been such an intense and loud cry that I absolutely would have had to run out of the movie theater. After the movie I drove my friend home (~30 min), but I couldn't say one word to her because I was still so deeply upset that my lips were trembling.

I don't cry much, in fact, I really can't cry when most people ordinarily would. But in the rare circumstances where something can make me cry (whether it's very sad, or just incredibly beautiful) it is always with maximum intensity.