The bus tour has come and gone. Now, so has the movie premiere. A flattering “documentary” (from the looks of these clips, it appears more like an infomercial) about Sarah Palin, the former Alaskan governor and one-time vice presidential nominee, had its first showing in the tiny town of Pella, Iowa on Tuesday. But despite plenty of speculation that it could “serve as a galvanizing prelude to Palin's prospective presidential campaign,” the event went off with little fanfare. Palin attended a post-premiere barbeque and had lunch at a Panera Bread restaurant with a GOP fundraiser, where politics reportedly wasn’t on...