The documentary appears to have had an insignificant effect on Bush's approval rating. Rasmussen, an independent service that tracks presidential approval ratings on a daily basis, tracked essentially no movement in Bush's approval percentage throughout the film's debut week. Ten days after the premeire, his approval rating climbed one percent. If you listen to all the folks giving the film free press, you might mistakenly believe the film has more power than it does. Either Michael Moore has only been preaching to the choir, or undecided voters don't cast their vote based on a single opinion piece.