Warm Bodies is a movie that suffered from the
tragic "solid concept, shoddy execution." The idea was there, but it
just wasn't fleshed out in the right way. Nothing seemed realistic, and
it was a disappointment.
Warm Bodies is kind of bordering on a 2.5/3 rating. On the one hand, it's a really cool concept, and it finally gives an explanation for why zombies eat brains (I think Roeper said that actually, but it's probably what everyone will think whether they saw his review or not). On the other hand, it was basically adapted from a 7-page short story, and it felt like it. Sure, the author expanded it into a novelette, and then a screenwriter tried to condense that into a movie, but there were a lot of things that just didn't feel fully thought out.