Alright, since I'm not one to drag these things out for a month or two, I'll give you the answer (if I remember it).
The earliest vampire film was director Arthur Robison's German silent film "Nachte des Grauens" (1916), aka "Night of Terror", with strange, vampire-like people.
The Hungarian film "Drakula Halala" (1921), aka "The Death of Dracula", was the first adaptation of Stoker's novel "Dracula".
The second "Dracula" adaptation was also produced by a European filmmaker - director F. W. Murnau's feature-length "Nosferatu, A Symphony of Terror" (1922).
This 1922 film, along with Coppola's 1992 picture, "Bram Stoker's Dracula" are my two favourite vampire movies. "Salem's Lot" (1979) would be third, followed by "Dracula" (1931).