I feel like I've read the comment I'm about to make somewhere else about something, so this isn't necessarily my original idea: the buzz is from social media currently, yes? And it works as a great indicator after the movie comes out, as people are tweeting/facebooking/etc. about it. But what happens in a little while when the "buzz" dies down? Or is the idea to just give you a quick glimpse of currently releasing movies, and not to be a ranking database of all movies ever made.