Same at the one I went too and they were all sold out. I pulled up 30 minutes before at 11:30 thinking that was plenty of time and the massive parking lot was entirely full. I've never seen something quite like it at a theater (especially at midnight).
The guy behind me was interviewd by the local news. He came from Puerto Rico just for the film. Apparently his friends and family all pitched in to get him here.....
jebus christo, you really give that much of a shit what the ratings are or aren't? Either go or don't, no one gives a shit that you have "tats" and piercings and are too non-conformist for your mom's minivan or imdb's lists.