When Harry met Sally

I think "when Harry met Sally" is a very romantic movie.
Both main characters are individual and they have their own features that add flavor to their story. They have "double" type of relationship that the opposite of everything. These types of people complement each other, are at opposite ends of the extraverted/introverted, logic/ethics, and intuition/sensing dichotomies, but on one pole of the rational/irrational dichotomy.
Harry (IEE, Huxley) is a bright and bubbly personality, each time trying to look original and unusual, so it is immediately possible to notice among other people.
Sally (SLE Gabin) is a calm, slow, serious, seasoned people. Sally is stubborn and wilful woman, nurtures the psychological distance. She slowly gets acquainted with a new companion, watching how he acts and behaves, assesses how this man can be trusted. Despite the fact that Sally has an introvert character, and not too interested in people, she loves to talk and laugh with her close friends and good friends.It will never do what she does not want. 
Harry and Sally in spite of the different characters, have common topics to discuss and complement each other.