Take Shelter-- an excellent film which I will sadly admit that I referred to as "Gimme Shelter" on several occasions-- is well-acted, tense, and thrilling; and essentially, it asks this question: if you you act paranoid, delusional, and batshit crazy about something you think is going to happen . . . something no one else believes will happen . . . and in the end, that insane thing actually happens, then are you still utterly batshit crazy?