Weirdly I do not cry in Bridge to Terrebithia when she dies, although I do mist up - book or movie, the scene that sets me bawling uncontrollably is when the previously-antagonistic-teacher tells the boy that she understands how he feels, because she lost her husband.

I usually start crying when Buffy tells Giles not to move the body... and then get myself under control just in time to start crying again when Anya does. Oh, god, that speech.