Korean movie... Thirst (or Vampire)
Director Chan-wook Park did Old Boy which is one of my favorite foreign films (definitely Netflix worthy). His sense of storytelling can be humorous but truthful and sad. Its very poetic and since I already like Vampire stories (minus Buffy, Twilight and anything 12-year old girls would love), his seems right up my alley. Yes it is in Korean, but you get the point. Priest is a vampire and falls in love...yada yada... but its still a great trailer.
