I adore vampire movies, but to my vampiric shame, I have yet to see "Nosferatu." Here's a sample of favorites that immediately come to mind: Jim Jarmusch's "Only Lovers Left Alive." I love Adam's response to Eve comment about the magical singer toward the end of the movie. "I'm sure she'll be very famous." "God, I hope not. She's way too good for that."
"Let the Right One In" has a young love feel (at least for Oskar). Of course, the novel explores many characters in depth, such as Virginia.
And a recent one is "Night Teeth," with Debby Ryan from the wonderfully crazy show, "Insatiable."