The Abe Lincoln movie is actually an adaption of a book: http://www.amazon.com/Abraham-Lincoln-Vampire-Seth-Grahame-Smith/dp/0446563080/ref=sr_1_1?ie=UTF8&qid=1292283323&sr=8-1

But, I'm sure that's why he was able to write it in the first place.

Thanks Scott!

Sometimes just asking the question helps. But actually getting an answer is primo.