Jennifer's Body is deffinetly a movie with a lot to it. Not forgetting we're talking about a movie that involves demons and possession, among other stuff, of course. The story itself is quite consistent, with good acting AND, last but not least, the amazing soundtrack that includes All Time Low and Florence + The Machine. The recipe makes a good movie, since about demons and possession is extremely hard to find a good film with some cool specials.
About the story, i already said it is quite consistent, with no open action in the end, since the final credits exposed the idea of the finale quite well. For a scary movie is not too heavy, although it has some gory moments it also has some funny lines, usually said by Jennifer (Megan Fox), who seems to be that type of highschool hottie who has an amazing body but who also is really dumb (and that's why she requested the English homework to Colin). Anyway, i really liked the character of Jennifer, especially because she is a mix between that type of popular school girl and a misfit monster. I felt really bad with the fact that she killed Chip, though.
Overall, Jennifer's Body is a scary movie which is entering my top ten list (pretty soon).
