None.

Guns are often seen frequently, and it is a constant theme of the film.

A policeman is shot in the shoulder, we see some blood.

A policeman is shot through the head; we see the bloody hole.

Other moderate violence and references to violence.

Frequent uses of "fuck", mainly from Christopher. Throughout the whole film there are about 30 uses.

Some milder language: "shit", "bastard", "hell".

Frequent smoking.