There is a scene where it's implied two characters have sex.

Some mild sexual references.

Quite strong for a PG-13 movie, but not quite harsh enough for an R rating.

3 uses of fuck, 10-20 uses of shit, 5-10 uses of son of a bitch and some other mild language such as hell and damn.

Some drinking. Characters occasionally get drunk.

It's a darker movie than most people would think. One character is very psychologically damaged, which is reflected on his behavior.