Cynics will think they know everything about Texas Chainsaw 3D solely from its title. To that, we say, "Maybe, but do you know which three dimensions it's in?" (Okay, fine. Unless you're Buckaroo Banzai, it's probably the three you were suspecting.)
Which isn't to say there aren't surprises in the film. For example, when one of the good-looking protagonists is inevitably sawed in half with a chainsaw, does he get sawed in half crosswise or lengthwise? And yes, the most naked and promiscuous of the good-looking protagonists get the most gruesome deaths, but how much of their skin will you get to see before classically-trained chainsaw massacreur Leatherface turns it into a custom luchador mask?