Everyone who watches bad films has noted that IMDB's ratings have been heavily influenced by the followers of MST3K and that the ratings have an inherent problem of rating by quality vs rating by entertainment value. Can this be used to find undiscovered good-bad films?
Looking at the voting breakdown of films like "Birdemic," "Death Bed," "The Amazing Bulk," "The Room, "Demon Lover," "Plan 9," "Manos," "Troll 2," "Robot Monster," Asrto-Zombies," etc., I decided to look at films that:
1) Have a rating between 2.8 and 4.6 (rationale involves 5 votes, 2 of them being 1, 1 being 10)
2) Have a mode of 1 (at least 25% of votes)
3) Have at least 10% votes of 10
Starting at a score of 3.7, titles that I found (from 1950-1990) were:
How to Make a Doll
Queen of Sex
Captain America (1979)
Revenge of the Mysterons from Mars
All in Good Taste
Delta Force Commando
Bruce's Fists of Vengeance
Time Burst: The Final Alliance
I've seen 16 of those and most are borderline choices. This might be a viable search plan!