I have zero idea why this is rated R
1 use of GD and 1 use of S***. Or that's what I remember from just now watching it for the first time. Sure there was some violence but nothing that should have gave it a R rating. It should have gotten a very weak PG-13.
Now having said that, I really liked this movie. My brain had a hard time wrapping its self around it all but it was pretty darn good.