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jormis29
Since: Mar, 2012
Powoga
Since: May, 2016

I can really only remember the climax of the movie:
A group of people (maybe scientists trying to study vampires) awakens a vampire, who proceeds to kill most of them before they can take him down. One guy basically dares the vampire to bite him and make him immortal. The vampire responds by biting the guy's face off, which turns his whole face into a sort of fanged, vertical mouth.
If I had to guess, I'd say that the movie came out around 2010ish, and was set in the modern day.
I already checked all the relevant tropes I could think off (Monster Mouth, Tear Off Your Face, Our Vampires Are Different, stuff like that) and couldn't find anything.
Thanks in advance.