The reunion between Bryan and his daughter Kim at the end of the movie. This Troper was bawling their eyes out.
Kim: (sobbing) You came for me.
Bryan: I told you I would.
Happens again in the sequel, made even more heartwarming because Kim helped save Bryan.
In the sequel, Byran's whole relationship with Lenore is pretty sweet, always supportive and friendly. This is highlighted when compared to the first movie, where they couldn't spend two seconds in the same room without fighting over some issue.