As for me, I've never cared what someone's politics are when seeing a movie, but it's not a big deal to me if someone else decided to pass on Mystic River or whatnot because of the stars (Robbins, Penn). I wouldn't pass up movies for that reason, but hey, to each their own.
I understood his point, and everything but my first sentence dealt with what he was saying. But, again, I couldn't care less if liberals feel the same way about Churchill as I do Marx. In fact, I wouldn't be surprised if they do. Their loss.