Better than voting for a proven failure by direct vote, or a vote of "conscience" (translation, some guy who doesn't stand a snowballs chance in hell, or just not vote at all because neither candidate is my "perfect" candidate). You yourself have spoken of sometimes having to make small compromises while trying to get laws passed to gain some advantage, well the same goes for elections (and most things in life). Is old Mitt perfect? hell no, but Obama is a proven failure in office, and nobody else really stands a chance. So as I see it, those are the choices, a failure, a nobody, or the best option available. You vote as you want, but please don't tout about your involvement with the Republican party, when you openly throw their candidate under the bus, it smacks of hypocrisy.
Oh and on topic, I did watch the movie and would like to sue the producers for my time back. I am no supporter of Obama, in case you missed that, but please. That movie was worse than a Michael Moore production.