Two characters are seen having sex with two prostitutes. A woman's breast is seen from the side in this scene, but it's at night-time, and very dark.

A man's face is cut with a knife.

A man has his hand chopped off. It happens offscreen, but you can see his bloody stump. Then the perpetrator throws the amputated hand on the ground and squashes it under his foot.

A man is stabbed in the abdomen; shortly after, we see the man's internal organs spill out of the wound before he dies (brief but graphic).

A man's arm is cut off at the elbow.

A man is beaten by a gang with bloody results.

Several men are shot in a firefight.

Minimal.

People are seen drinking throughout the whole movie.

A few cigarettes are smoked.

One of the main characters gets involved with drugs and is briefly seen using some.

Most of the violence listed above is fairly intense, or even disturbing.