Tucker and Dale vs. Evil is a hilarious and gory farce about college kids being terrorized by hillbillies--except the hillbillies are really nice and almost all the deaths are accidental (hence the farce aspect).
I would unhesitatingly recommend it as entertainment.
But is there something serious going on here? I can't help but think that there's something interesting about the class war of the typical slasher film inverted, so that it's not the poor po-dunk workers/hillbillies/servants who are the monsters, but the preppy college kids. Suffice to say, the movie was largely financed by Canadians.