I really enjoyed this. You are dead-on about the illogical points of the film. At least to someone like me who hasn't seen or read Twilight. Either way, very funny. I love the voice acting, timing, and the way you synched the images with the audio. It's very funny and well written.
Just a personal pet peeve, based on my own interest in vampire mythology, you can't really criticize using "common knowledge" vampire traits as a basis. ("Useless" this review to your hearts' content.) The original folklore legends vary widely. For example people killed vampires using a variety of methods including, but not limited to, a stake through the heart, a brick shoved in a corpse's mouth, or some even put scythes in the coffin to cut off the head of any vampire who tried to rise. And the same way the folklore doesn't agree, every book has a different take on what vampires are, what they are capable of, etc. I'm not saying glitter vampires is a cool idea or anything, but I've yet to read any two vampire books with the same "type" of creatures and you have to give the author credit for at least trying something new...however lame it may be.
Either way, this was good. It makes me feel like I might need to watch Twilight now for a good laugh though...