Santa Monica, California is hosting the American Film Market this week, where buyers and industry folk will screen films, view marketing materials and exchange business cards, ultimately making decisions on what is or is not coming to your local cineplex in the next year. What this means to us (and more importantly, you) is that we get all kinds of fun new marketing materials and plot descriptions to oogle. Up first, the folks at ShockTillYouDrop spotted a new poster and synopsis for Scream 4, a