Anyway, I glance at the first page of recommendations, see nothing interesting, maybe go to the second page, and then punt, although it is showing a lot more "predicted 5-stars" recommendations then I recall seeing in the past.
So I decide to look through their sci-fi/fantasy section--I almost never use the browse interface--and see if there's anything obvious I've forgotten to rent (or rate). They sort the listings by your predicted rating, which simplifies life.
Anyway, at the very top of SF/fantasy, the first movie they list, with a predicted five-star recommendation, is Peter Jackson's "Bad Taste".
Which I've already seen, so I'm not going to rent it again, but I have to admit, they nailed the predicted rating..