I don't know what to say. It's probably better than I expected, but not as good as it could've been. It certainly looks impressive on the IMAX screen. Will Smith does a fine job acting alone for ~90% of the film. The empty, overgrown streets of Manhattan are impressive. But the Dark Seekers (are they more zombie or vampire?) are more noisy than scary. Perhaps I'm just jaded. It was okay.
Oh, yeah. And in IMAX it comes with a 7 minute clip from "Dark Knight" . Looks like it has the same strengths/weaknesses of "Batman Begins". It'll be a well made, well acted, and about as intelligent as a major studio action movie can be. But it'll sorely lack the sense of humor found in Tim Burton's "Batman". Which would be a real shame for a movie featuring the Joker.