2 kisses.

A man is punched several times and is knocked out (the fact that it is from the perspective of the assailant may make it more violent). A man is murdered with blood shown from a wound on his head. Two men struggle briefly resulting in one falling off a small cliff and dying in the ravine below. A woman falls out of a window and dies.

None.

A good amount of smoking and cigarettes being lit.

Brief smoking.

The hallucinations a man sees when unconcious during surgery may be unnerving. Also, the scene where a woman falls out of a window is more dramatic (this is a film noir).