Underworld, the Kate-Beckinsale-vampires-vs.-werewolves film, topped the box office this weekend at $22 million. N.B. that when I say “partly our fault,” I mean approximately 0.000082%.

Critics seem to loathe it, but I had a much better time than I expected, and I’m notoriously hard on films. It’s certainly not high art, but at least it seems to care about whether it makes sense within itself or not. I’ve seen much, much worse vampire movies. I’ve seen much worse movies that didn’t even have vampires in them, in fact. And this one has Beckinsale in goth fetishy clothing, of which she seems to have a bunch, and what’s not to like about that?

It’s marketed, sorta, as a Romeo-and-Juliet kind of thing, but that’s a real stretch — not every story about (potential) lovers from warring clans is a rehash of R&J. A better case can be made for a racial politics theme, but even that is subordinate to “run, fight, shoot, jump, and look fancy in black leather or latex, pausing occasionally to reveal more of the plot and backstory” (and thank God for that).

Beckinsale is easily the best of the cast; most of the rest seem to have been hired for look rather than talent, but fortunately Beckinsale is (usually) the only one who’s called upon to do anything that really looks like acting. What ultimately saves the film is a more-intricate-than-you’d-expect plot that isn’t over-explained (though the Exposition Fairy does make some unnecessary visits early on).

Oh, I was going to link to the official film site, but it’s a nasty full-screen all-Flash thing. The Sony site, though, includes a link to an Underworld Half-Life game mod, which is a marketing tie-in I’ve not seen before. Clever.