Naturally standards change. However, back in the day there was a forgettable, campy slayer film called, I think, “Student Bodies”. I saw it because it was playing at the $2 double feature second run movie house and had air conditioning in the summer. I pretty much went there every week regardless of what was playing.

Anyway, in the middle of the movie, a fellow appears behind a desk and says something like “Everyone knows that movies with a R rating make more money. So in order for us to get that, ‘F… you’. “

And, that was apparently enough. Can’t speak to whether the tactic was effective.