Basically all of
Gone With the Wind I really like Scarlett's "I can't think about that now, I'll go crazy if I do. I'll think about that tomorrow."
Notting Hill when they're all getting in the car to chase after Anna at the press conference at the end of the movie. I love all of it, from them not leaving behind the woman in the wheelchair (can't remember the name but the site makes me tear up, he loves her so much!), Spike holding up traffic...I just love it!