An idea for a movie

Robin Hood vs Dracula - Count Dracula terrorizes the medieval english countryside, searching for the last of the mythical silver arrows from the Quiver of Longinus, the only weapon with the power to destroy him forever. The corrupt Sheriff of Nottingham finds himself unable to quell the hysteria of the peasantry in the face of a rising plague of vampirism. Seeking to restore civil order, and desiring the silver arrow for himself, the Sheriff offers heroic outlaw Robin Hood and his band of merry men a pardon in exchange for eliminating Dracula and bringing him the arrow. Who will win and who will die when the Prince of Thieves battles the Prince of Vampires?