The definition of what content is appropriate for certain levels of rating do seem to have evolved over the past several years. I have noticed that more sexual content and coarse language seems to have made its way into movies that are rated PG-13. However, when I think about this change I wonder if simple economics are at play. Previously, these movies that had coarse language and sexual content (especially nudity) would have been given an R rating. Today however, many of these films are being rated PG-13 and I would argue it is being done to attract the 13-16 year old movie crowd. If the MPAA continued to rate movies with an R rating, they would be denying themselves millions of customers each week that would otherwise be unable to attend the movies by themselves. Do you feel this is a credible argument to possibly explain the liberalization of the ratings of recent films?