Pay-as-you-go movies and popcorn

In our society if we want to watch a movie we have to pay big bucks and be forced the watch the whole thing even if it is crap just to get our money’s worth. That sucks. What is this Russia?! Why can’t we have a system where we pay more the longer we sit in a cinema and watch a movie? If it’s terrible like say … I dunno, anything by Adam Sandler, we walk out and only pay a couple bucks, if it’s good (Adam Sandler is the man!) and we stay until the end, we pay more. It’s the parking metres system for movies!