Language: For an R rating there actually wasn't that much language, and the majority of it was weaker.
Violence/Gore: Yes and yes.
Music: I especially liked a couple songs at the end of the movie. Very southern.
Thoughts: I never really knew the story of Bonnie and Clyde, and I especially didn't know the story of the men who hunted them down! Besides a few moments where I felt the energy lulled, this was an interesting and well done movie.
In the End: 4 out of 5 stars (which is a lot less holes than they put in Bonnie and Clyde).