In this report various research questions will be tried to be answered: Do mainstream movies follow any kind of sentiment pattern? Is there a difference in pattern or sentiment between most popular and least popular movies? It is no surprise that movie industry moves lots of money. With that one would think that they thought about every single detail and that even sentiment pattern would matter in the making of a movie. The aim of this project is to explore that and to see what differs popular movies from not so popular movies.