Warm Bodies has an interesting concept: seeing the world from the perspective of a zombie. While I think the narration at the start could have been used less often, as it sometimes felt like filler or the scene would have been better without any inner thoughts. The best example would be the first conversation between "R" and his best friend "M" at the airport – the rule in movies usually is show and don't tell. But during this scene, they're trying to show and to tell that they're currently showing something. This happens later on as well, and each time I got the feeling that the makers tried to appeal to everyone – including people with very short term memory. But I'll get to this later.

The movie felt slow straight from the beginning – like a real zombie should feel like. Sometimes extremely slow, as it seemed like some scenes were just there to make the running time longer, which always sucks. In hindsight, the movie would have been better if it were 20 or so minutes shorter, with a lot of the music laden montages or music laden – but still tedious – walking scenes removed. But perhaps that was because the movie followed the "life" of a zombie. A lot of the conversations between Julie and "R" felt boring, long and tedious as well, while the conversations between R and M felt like they had weight to it – and they were often funny, thanks to M.

But actual progress or development is where the movie doesn't delve into very much, at least with our main characters. At one moment Julie is afraid she might die at any moment, but a music laden montage later she behaves like this no big deal and all she has ever known – even making jokes about R, whom she calls "the shrugger." You know, because he shrugs a lot. I would have called him Sir Shrugalot, as he tries to keep Julie safe like a knight in rotten armor. But we never see why she behaves like this. We can only guess, because the time that passed is only mentioned once. And "a few days" is very open to interpretation on how it actually was.
It's the same with R. At the first night Julie is sleeping in his plane, he is lying down but doesn't sleep nor dream. He also tells the viewer via inner monolog that the dead do not sleep or dream. Later, when they left the plane to bring Julie back home, he lies down again. He again tells the viewer that the dead do not sleep or dream – and immediately falls asleep and dreams. It was set up thirty or so minutes earlier, but the movie still felt the need to remind the viewer, so the viewer with this very short term memory doesn't miss the change.
The most development we get is with M, R's best friend. He actually is the most developed character in the movie. R has no personality, Julie is a generic love interest and damsel in distress, but M is a real human being – as much as a zombie can be one. While R always says that he is conflicted, M actually shows that he is conflicted. M is loyal to his friend, R, who wants to keep someone alive instead of eating her. M tries to convince him that they need to eat Julie, because she is alive and they'll become boneys/skeletons (or "waste") if they don't. And he delivers it with just two words: "Living! Eat!" You can actually feel M's desperation through those words. But he still does not try to eat Julie, as his friend does want him to do that – M is a good friend.

The movie tries make us believe that zombies seeing a zombie and a human holding hands can make their hearts function again. I'd call that a little far fetched. But hey, so is the idea of zombies itself! So I think it is alright to let it slide or file this under the "zombie fairy tale" category, which makes the happy end fit in much better as R becomes a real boy.

And while I mentioned the movie starts really slow, it picks up in the last act. For some it might be too little and too late, but I could let it slide – but I still think this is barely an 6 (an ok movie). As I said earlier, the movie would have been better if some of the narration, unnecessary scenes and montages would have been removed and trimmed the movie in the progress. I also didn't mind seeing a zombie getting make up to the song "Pretty Woman" - it was so surreal, it almost was a laugh out loud moment. The music was played on one character's iPhone, in case you're reading this review by removing the spoiler warning yourself. iPhones last a long time, says product placement.

I think some people, especially zombie-purists, will not like the movie. It does not have a lot blood, gruesome death scenes or a high amount of gore. But the only thing I can say to that is, in the words of M: "Bitches, man."