They may make a movie that could be R-rated and edit it down to be PG-13, ensuring it can reach more people and therefore make more money, but then release the R-rated version on DVD which is a good marketing tactic and ensures the 'original' vision is maintained. In the age of home video, more creators have gotten to take advantage of different ratings. It determines your audience, how the film will be presented, the creative freedoms and limitations afforded to you, and much more. Movie ratings are one of the most important factors in a movie. Five Nights at Freddy's will unfortunately forego any kind of R-rated version.
