Testament. If you don't cry at this movie, you have no soul.
Seconded. It's a small film, but overwhelming. Almost 30 years later, I still think Jane Alexander was robbed of the Oscar.
Of course, she was up against Shirley McClaine for Terms of Endearment...another movie that makes me cry every damn time I see it.
Oh, yeah. Steel Magnolias, too.
Atonement always gets me, too.