The movie's subtext seems to be that "an eye for an eye" only ends up with everyone blind. The film also conveys the message that just governance requires wisdom and humility.
Positive Role Models & Representations
Plenty of action-packed battle sequences that have characters hitting, slamming, spearing, stabbing, lancing, and blowing up enemies. Much of it is done with special effects, so they're not exactly gory. Still, they're intense. Lots of screaming; a character charges into a top-secret location, tossing and punching those who stand in his way. Guns are drawn.
Some kisses. Characters comment on others' physique.
Language is rare -- just a couple of uses of words like "damn," "hell," "ass," and "oh my God."
Tie-in to vast quantities of related merchandise. Some strategically placed cereal boxes and a mention of a character in another comic book hero movie, Iron Man.
Ease of Play
Some hearty ale-drinking at Norse revelries. Two men guzzle beer at a bar.