The Best Bad Movies

I love watching really good bad movies... you know the ones.

I want to develop a personalized equation that will score movies, allowing me to fine tune my viewing.

Currently we have the following variables for the equation:

-number of people killed 
-rotten tomatoes score 
-rating (R, pg-13, etc...) 
-Reasons for being ‘R’, weighted accordingly (nudity, language, violence...)
-movie budget (some type of inverted u-curve here)
-total screen time (optimal time maybe 75-105 mins...)
-Number of people with tattoos from the movie 
-search for key words/phrases in dialogue(https://imsdb.com)

Any other suggestions on variables that could be added?