Here are some great movies that are about vampires, wearwolves, and other mystical beings
I am Number Four ( there is also a book called I am number four by Pittacus Lore. It is very much like the movie so if you liked the movie you would like the book and vice-versa)-
This movie was one of the best that I have ever seen.
Click on the link below to watch a movie trailer:
http://www.youtube.com/watch?v=g5djHG3hPu0
Click on the link below to see a movie synopsis:
http://www.imdb.com/title/tt1464540/
Thirst-
I believe there will be a movie about the Thirst novels by Christopher Pike. In the About The Author section of the third thirst book it says
"Thirst and Alosha are slated to be released as feature films."
If this movie is anything like the books it will probably be rated R.