A not-so-great wannabe I'd file under The Matrix and horror, complete with stylized (choreographed) violence, basically dance numbers with a video game sound track -- basic / transparent outreach to a teen audience, by the book Hollywood.
On the brighter side, it highlights favorite clichés, gives new insight on the "what makes it tick" level. For example, as soon as our adorable Lost chic makes some reference to wanting sex (after all she's been through, she deserves gobs of it), she's fair game for the blender. Very formula.
Our advice in the vid store was to skip the 2nd and go straight to the 3rd. We'll see. Life is short.