This movie is a true masterpiece, with brilliant writing, great acting, and a nicely adapted storyline that will leave people familiar with the "Dracula" novel hungry for more. I would definitely recommend reading the book before watching this, because there is a lot added into the movie that was not in the book and a lot in the book that was omitted from the movie. The movie contains an astonishing amount of gore and sexual content (although there is little actual sex), but it has a certain literary quality to it that is not in many modern horror movies. The deciding factor on whether or not a teen should see this movie is their motive. If their motive is that they just want to see a lot of gore and lesbian sex, then why should they be allowed to see it? And if their motive is that they want to be scared, then they should watch something that's a bit scarier than this (there's a lot out there). But if they really want to see a literary masterpiece being brought to life through innovative filmmaking, this is a great choice. But only, of course, the teen is old enough to handle the content.