A man makes a double-entendre about having "the balls" to play croquet.

A group of men are shown in their underwear, which consist of wool long-john's.

The dwarves are seen nude in a fountain after they are given a meal in Rivendell in the extended cut.

Many lengthy battle scenes, without much blood splatter but some slashing and dismembering.

Azog the Orc has had his forearm cut off in one of the flashbacks. Later in the movie he is shown wearing a primitive prosthesis - a construction of hooks attached to the stump by piercing the flesh.

A severed head is brandished and thrown.

An extremely large pile of corpses is shown as the aftermath of a battle.

A non-human character's belly is sliced open with a sword. He says something humorous then his throat is sliced as the scene cuts

A few heads are (non-gorily) cut off onscreen.

A non-human character is stabbed through the throat and thrown to be eaten (offscreen but heard) by wolf-like animals.

A non-human character is killed by repeated smashing in the head with a rock, seen from a distance.

It is implied that humanoid characters such as trolls or the creature Gollum might eat other human-like creatures like hobbits, dwarves or goblins.

A giant wolf-like animal is killed by stabbing with a sword.

A non-human character is killed by repeated stabbing and slashing with a sword.

Many characters smoke pipes full of "pipeweed". Reference is made to the calming effects of "pipeweed" (Tolkien was clear on the fact that pipeweed is tobacco, not cannabis although the expression on a characters face after having a puff may contradict that).

Ale and wine is drunk with a meal.

A character is described as crazy because he eats too many forest mushrooms, probably a reference to "shrooms".

The initial image of the necromancer might frighten some viewers. It's very ghastly looking though obscured.

Gollum's appearance may scare younger viewers, especially when he screams in closeup.

Characters are almost thrown from a mountainside path and crushed by rocks.

There are some very emotional scenes between characters, especially Bilbo and Thorin.