Like a few other people, I don't really cry at real life but movies and other fiction can make me well up really easily. I've shed a tear at loads of movies but some I can remember off the top of my head:
Toy Story 2 & 3 (Pixar really know how to push my buttons)
Return of the King ("My friends, you kneel to no-one")
The Lovely Bones (The closing monologue, not surprising here though as I sobbed uncontrollably for large chunks of the book).
Deathly Hallows part 2
Star Trek (George Kirk's exit at the beginning of the film)
Romeo + Juliet
Beautiful Thing (The fairytale ending brings on tears of joy)
Little Miss Sunshine (tears of sadness and then joy at different times)
Loads more I'll probably remember later.