For me it would have to be Fight Club. Tyler Durden really makes sense in the first half of the movie the way he explains people. His views towards the world and how everybody is always worried about where they are going, or what everybody thinks of them, about a relationship, about life, and that you should just calm down and relax. Just let go and know what you want in life. I also like how he states that you are not special, you are just like everybody else. You're not your job, you're not your clothes, etc etc. People get caught up in material things and forget who they actually are. People often times think they are different than everybody else and they are better in some way. Think about it, do you view yourself as being different than other guys than yourself? In reality we all are similar in a way. Even at the beginning when The narrator asks Tyler what he does for a living and Tyler responds "Why? So you can act like you are interested?" This hits perfectly because when you tell people about things like this they over act and it's obvious. It just shows a fake side to people instead of them telling you how they actually feel.
Overall this movie just really made me have a different view on people and life in itself.