What is up with the vampires?

If FDTD had been just a vampire movie i would have been kind of disappointed by the way vampires are portayed: they’re basically zombies (the process of turning into bloodsuckers is typically zombiesque: vampires have to drain blood from another vampire to turn into one…), they’re ugly, they bleed green slime, etc…

BUT, like Scarface said, this is not a vampire movie, and the horror-gory part, along with the others, is perfectly enjoyable just the way it is.