First impressions are usually a good indicator to me. My views of most films don't change often after seeing it for the first time. There are exceptions, but for the most part, my film opinion doesn't change much as I know what I like or what I don't like when it comes to movies. IMO, I think most people are like that.Which makes my point even more. Any ranking system based on spur-of-the-moment data is questionable to me.