I just saw a commercial for a movie called Don't Back Down. From the first few seconds of the trailer I thought it was going to be another cheesy teen urban dancing type movie. A few seconds later it became clear that it is a movie using the same formula but this time there is no dancing, the contest where the underdog trains his ass off to take over the big meanie is street fighting. I think that's what you call it. You know, like Ultimate Fighting Championships or Pride, where the big knuckleheads get thrown into a ring for what is basically a human cockfight. I'm not big on media effects theories because they assume a homogeneous passive audience and I think people are more complex than that, but I'd have to say making a teen movie that glorifies tearing someone's guts apart is seriously tempting fate.