500 Days of Summer is one of my favourite films, because it just makes so much sense:
The reason I think this scene works so well is because we all can completely relate to it. We have a vision in our heads of how an important meeting, conversation or event will play out, and we can be disastrously wrong. But if you flip the coin over, that isn't always a bad thing.
Sometimes reality can far exceed expectations. How many times have you worked yourself up about something and, things turn out for the much, much better?