Well, shucks. I would have gotten EFNY if Lostie wasn't constantly lurking the forums http://media.urbandictionary.com/image/page/ohnoes-43288.jpg I'll take a stab at this one... is it Talk to Her? http://mob164.photobucket.com/albums/u16/joyo131/genbloody.jpg Shadow of the Vampire? It fits. Nope.

1. it has a dancing vampires sequence
2. there's a movie within the movie

Escape from New York

The Hit

1. The events that happened two days after its premiere effectively killed this film's chances of distribution within the U.S.
2. Based on a 1993 novel
3. Two words in the title

Y tu mamá también?

Yes, easy one