i do this with a couple in particular, whenever i feel like having a good crying session: the final scenes in call me by your name and normal people. it's pretty much automatic, especially with normal people. i know exactly what the characters are going to say and when, but i still cry every time. it doesn't matter how many times i've seen it. the scene will always carry the same emotions and be able to access the same ones within me. what a privilege it is to be profoundly moved by something.
