There’s a review at American Thinker:
A unanimously negative media response to the political slapstick movie American Carol reinforces my theory that humor — and satire in particular — is an accurate litmus test of one’s political and ideological convictions, even if one insists on having no convictions at all. If you want to check your friends’ politics, take them to see this conservative comedy and watch the reaction.
Committed liberals won’t laugh at conservative humor and vice versa. If they don’t agree on the joke’s basic philosophical premise, the sting will miss the spot and the joker will be shrugged off as a pathetic fool (for reference see conservative reaction to any of the David Letterman shows in the last ten years)….
Well, that’s a reasonable argument. However, we just saw the movie and thought it a bore (but I’ve never cared for Dicken’s Christmas Carol either).