Movie trailer round-up: Clintball, bin Laden and Kerouacky snacks

This is my second week of covering the trailer round-up and already it's provoked an existential crisis in me. Why do we need to see little bits of things before we see the whole thing? Are we, as a people, somehow unfulfilled, incomplete? Should we not be trying to grab whole this vast spiritual cake, rather than settle for the mere crumbs these trailers represent? What's that? It's just advertising? Oh, right.