50 - Average movies that did well at the theaters. 25 - Poor movies that were seriously made to be good movies, avoid these loosers. This is the video equivalent of used toilet paper. 5 - Piece of crap that may have been a mainstream hit. After all it is a zero.
Negative score means that the movie is entertaining because it is so bad.
A negative score is by no means bad, just an alternative way of making a good movie by making it intentionally or unintentionally bad. This is a work of art. Must have seen it at least 50 times, and it was funny every time. So many comedies tried to do what this movie has done and failed miserably. The ultimate stoner film.