I was gonna be a smart aleck and say "The Wild Bunch"....but okay, there are some movies that can take us on an emotional roller coaster if we allow them to...that is in fact why they exist, to entertain us and illicit some emotion whether it be joy, laughter, a sense of right over wrong when the bad guy gets it, etc., (although depressing movies are just that, depressing...my own life has been challenging enough, I don't need anyone to remind me how tough things are and about what we do or fail to do in order to respond)....
ANYWAY, all that being said, for me a scene that springs to mind is in "Rudy" when all the star seniors are willing to sit out for the game in order to let Rudy get his chance to step on the field in a real game just once (as promised by an earlier coach)...as a former football player myself (just kid stuff & high school) & team player at work in the Army & Texas prisons for the past 3 decades...this really gets to me, that others recognized his heart & will to succeed, along with his self-less effort at such a high level, and it did not pass unnoticed or unappreciated and they were willing to give back a little....