I don't think it works well. It has Erroll Flynn's Robin Hood as very rewatchable (I liked it but it's not that rewatchable). Also Seven Samurai and Monty Python's Holy Grail as having very low rewatchability... as if.
Right now the results are based on ratings - so we only have a couple hundred users - all of which have not rated every movie. This is mostly a proof of concept until the rating counts grow.
One problem I kept having is that the focus would get stuck in a different point than the one I'm trying to move. Sometimes the focus would be on a point that wasn't even the last point I moved.