Have you seen New Moon? If so, how do you think it compared to the book? Was it better or worse than Twilight? Please, no spoilers!
Vampires do not sparkle. Vampires in sunlight burn, or at least (if they are ancient and powerful) flinch away and try to get out of it as soon as possible. I've read vampire fiction off and on for more than 30 years, and they do not under any circumstances sparkle (unless you lit them on fire using fireworks). I have WRITTEN and PUBLISHED vampire fiction, and MY vampires do not sparkle.
No saga with sparkling vampires should have been written. Having been written, it should not ever have been filmed. Moreover, the actor playing the main vampire doesn't look like a vampire, he looks like someone who's pulled one too many all-nighters and needs to go and get some rest and a shower.
Now, Alex Louis Armstrong, *HE* sparkles. And I'd go see a FMA movie. But that's another question.