Vampires are creatures that maintain immortality by sucking blood from humans and animals. They are night creatures, and the sight of sunlight turns them to stone, or sometimes dust. Typically, they are characterized by black capes, long corpse-like bodies and the ability to fly, although whether or not these characteristics were included in the original vampire myths is not known. They sleep in coffins, can't stand churches, and scream at the sight of garlic. Vampires are also highly sexual, and they often prey on members of both sexes.
There are several creatures that may have acted as precursors to the vampire. The leech is perhaps the most basic, representing the idea of a slimy, forboding creature taking human blood. The chupacabra, a blood-sucking alien creature that feasts on animals, is another vampire-like myth. This myth originated in the hills of South America, and still exists today. The myth of the fury, or a women that sucks the life from a sleeping victim, was created in Greek times to represent the wrath of the Gods. These creatures were released upon the earth to suck sould through the mouths of their victims, and send them to agony-filled torment in Hades, or Hell. Finally, a species known as the "vampire bat" has been studied by many scientists because of its strange eating habits. This bat sucks the blood of its victims by making a clean cut to the neck and main artery. It's saliva contains chemicals that gradually take consciousness from the creature it it eating.
The vampire myth appears to have originated in Transylvania, according to the Stoker novel, in the dark hills of eastern Europe. Stoker's Dracula is an old, placid man that appears harmless except for an air of doom about his castle. His vampires are the curse of the surrounding towns, and the descendants of a strange disease.
And from my research, I think that both are legend and superstition. But, in Islam we should believe those undefined and invisible creatures as they are Iblis and Syaitan. They do exist in this world but we can't see them and if so only in certain circumstances.
Okay, because of the legend, belief and superstition some people start to create the story of both vampire and pontianak. In the Malay version, Shuhaimi Baba succeed in making Pontianak Harum Sundal Malam 1&2. Other than that, the ancient Malay movie in P. Ramlee era, the movie maker produced Raja Bersiong which in these day it had been redo and update to be the new version of Raja Bersiong entitled Siong.