Let's keep this simple: PCHH talked about films, songs, etc., that consistently make them cry. Trey named the scene in Sense and Sensibility in which Emma Thompson loses it, which is my number one choice too. "When somebody has done the right thing and suffered for it and finally is rewarded and there's that sort of eruption, both for the character and the audience, of sadness and joy."
So, filmi friends, what movies make you cry and why? I know I cried during Chak De India in the cinema because those girls had gone through so much and came together so well, both as individuals with their own challenges and as a functioning group of wiser people with a common purpose, plus Shahrukh with the vindication and neighbors who don't hate him anymore, but I don't think I have subsequently. No other titles are coming to mind, but I hope some do if I search my email for "snuffle" and "bawl."
Update to post (October 26): After a good night's sleep I remember three other films that made me cry in the cinema: Stanley Ka Dabba, Taare Zamen Par (I think the Maa song, actually, which is extra pathetic, but in my defense I watched it with my parents, who are both teachers, and they were crying too), and the Farooq Shaikh scenes towards the end of Yeh Jawaani Hai Deewaani.