Are you controlling for things like, say, the age you were when you first saw a certain movie? It's kinda unfair to rank a brand new movie against the older movie that you watched a hundred times because it was one of the few VHS tapes at your house when you were growing up. There could be thousands of kids now watching that brand new movie hundreds of times on their iPads who are going to have similar attachments to that movie. Some of those kids will grow up to be filmmakers, movie critics, pop culture writers, etc.