I enjoyed this film although I'm in no ways its target audience. It's a teen film, primarily for chicks, but I'm having a cold and my wife isn't home, so perhaps I'm a little more sentimental than usual.
It starts off like any other coming of age yarn. Clary, our protagonist, is littering the house with drawings of her womb, a clear sign that she's on the verge of Growing Up. Luckily, she runs into the right people first, and they teach her what she needs to know about tattoos and black outfits with buckled boots, and all that other stuff that makes you cool and adult. A romance story is fired up right away as well, between Clary and this guy Jonathan with the cool sticky hair and silky British voice, and the two seem a little naive in that they don't pick up on each other's signals, but I guess that takes some life experience.
The story is very simple, utilizing all the expected elements of the genre, but does manage to keep them fairly fresh, and the plot has sufficient twists to stay interesting, although most of them have only minor impact on later turns of events. At some points it meanders a little and several scenes could have been cut out without affecting the plot at all. It would have suited the film to be a little bit shorter.
The characters are all exceptionally pretty people, and most of them have no character flaws either, yet it didn't become annoying like it very easily does in such cases. Clary is sympathetic enough for one to care about her, and it helps keeping you involved in the story despite the often predictable setup.
All in all, it had good entertainment value, and I think I only zoned out briefly a couple of times. Worth a watch, just don't expect anything from the Deep End of the pool.