I like the concept, I struggled a little in figuring out what to do at first, but when I figured it out I did a few quotes. The sentiment rating seemed a little random to me, it's pretty hard to phrase stuff using the exact words of a quote, but I guess that's the idea. My major qualm is that the quotes weren't correct - e.g. "Here's looking at you, kid", and "Mr Frootl", so some proofreading of the data would have helped. Still, a pretty cool concept and well-presented.