Well this is interesting:
Movies with Butter has launched a new feature called the “Popcorn Index,” tracking and ranking how many “likes” a recent film’s official Facebook page receives. The charts are sorted in a variety of ways, including daily likes, total likes, etc. So which films do we like the most?
That being said, counting the number of Likes on a movie’s Facebook page and trying to use that number to predict that movie’s box-office success remains a questionable tactic as best.