The narrative of warm bodies from the trailer is that there is another wolrld of zombies on the same world as humans. There's a group of humans who go into the zombie world and zombies see them, and chase after them. They lock themself in a room thinking that would keep them safe away from the zombies but it isn't, the zombies break into the room and end up killing all the humans except one. There's this girl which one of the zombie instantly falls in love with, we can tell this because there's a scene of him looking at her and then his heart starts beating rapidly. The zombie doesn't kill the girl he looks after her, and every second he's with her, he's changing more and more into a human. Finally in the end of the trailer there's a huge fight scene, which builds up to the very end of the trailer which is when they both end up jumping out from a high window leaving the audience on a cliff hanger.

Voice over is used to introduce a character from the movie, the voice over is used as a narrator. So the voice over talks about his life; about him, his friends, and what he does pretty much everyday. This is linked to the genre, which the main genre is fantasy, because he is a zombie. However because he's a zombie he can't talk, so the voice over is used to say his thoughts, what he's saying in his mind.

As I said before the genre is fantasy, however it's got more than one genre which makes it a hybrid. This movie is a romcom (romance and comedy), action and adventure, and it's a fantasy. We can tell this because the romance you see his heart beating at the sight of her. The comedy when the voice over says the cheesy jokes. Action and adventure, when there's a fight scene. Also fantasy, because zombies aren't real.