I went to go see An American Carol the other day, and honestly, I just didn't find it funny or that entertaining. There were a few parts that might have made me chuckle, but for the most part it was pretty boring.
The great thing about the film is that it is short and will be out on DVD soon. Of course, I'm not sure I would even recommend you renting it either, but if you REALLY don't have anything else to do that day I guess it beats sticking a needle in the eye.
It's not the worst movie I ever saw (V for Vendetta still is #1 in that list), but I thought it was very disappointing. Hopefully, this won't hurt the conservative film movement in Hollyweird, but folks, it sure didn't help it either.