Common Sense Note
Parents need to know that Thor: The Dark World is a teen-friendly follow-up to 2011's Thor, continuing where the adventures of that film -- as well as Marvel's The Avengers -- left off. The comic book-based action film treads on heavy ground, with moody characters prone to power-hungry moves and rage-filled conquests, and with intense battle scenes involving lots of stabbing, shooting, and punching, but it's not so much bloody as brutal. (We don't, in fact, see a lot of blood.) Expect some occasional swearing ("hell" and a few instances of "s--t") and some kissing.
Sexual
Content
Some kissing and flirting. A man is shown on a TV newscast running around naked, but not in a sexual context; his privates are blurred.
Violence
Loads of explosions, knife fights, and gun fights, though the results aren't gory. A woman slaps two men out of anger. Intense battle scenes where entire landscapes are obliterated. Characters shoot, stab, and kill each other, but again there isn't a lot of blood shown.
Language
A few instances of "shut up," "hell," and "holy s--t."
Social
Behavior
As Thor says, it is better to "be a good man than a king." Also, sometimes the meanest of people can redeem themselves.
Consumerism
Part of the Marvel universe, which has tons of merchandise associated with it.
Drugs / Tobacco /
Alcohol
Some revelry involving drinking.