I’ve heard some conservatives speaking of “the humorless left,” but if this trailer tells me anything, it’s that humorlessness can be found on both sides of the aisle. How else to explain this laugh-free, broad-as-a-barndoor jeremiad against America-hating liberals, embodied here in the person of a Michael Moore surrogate played by Chris Farley’s little brother Kevin? Granted, Moore kind of brings this upon himself, but I think that’s part of the problem- Moore’s tactics have become pretty embarrassing even to those who agree with his politics, so not only is it all too easy to single him out as a symbol of left-wing America, but it’s fairly inaccurate as well. But then, cheap shots are this trailer’s stock in trade- liberals hate America and deserve to be repeatedly socked in the face on for ideological reasons, while only conservatives truly love and respect what this country stands for (could the Trace Atkins song in the trailer be any more on the nose?). All of which goes to show you that there are few things more depressing than an unfunny comedy, especially one populated by has-beens (Kelsey Grammer, no doubt trying to rustle up funds for his next misbegotten Broadway show), crackpots (Jon Voight), and all-around attention whores (Bill O’Reilly). And this guy directed The Naked Gun? How the mighty have fallen…