If you can't wait for The Hobbit, and you need an orc fix, you could probably do worse than Orcs!—a low-budget orcsploitation flick that pits well-meaning campers and park rangers against, you know, orcs—because the tag line is "They'll eat your face off."
There's nothing in this trailer that explains why, exactly, fell Tolkien-esque beasts are laying siege to modern-day victims—but, honestly, I'd be disappointed if they tried. Because if you're going to make a cheesy B movie like this, the last thing you should let get in the way is logic. All you need is "There are Orcs. They will eat your face off. Let's move on."