Several years ago the american literary scholar, Joseph Campbell, wrote a book entitled: "The Hero With A Thousand Faces," outlining the main plot characteristics of the worlds myths, legends and tales. A disney executive wrote an internal memo outlining the work, and the Lion King (as well as others) was born.
George Lucas used the work for Star Wars, and there are many others as well - including J. K. Rowling's Harry Potter series. The plot and character points made by Campbell have accurately predicted the Potter books as they have been released, including Deathly Hallows.
Anyone who is familar with Campbells work, please comment this post with your observatons! Comments are moderated so they can be added to web content (like a "wiki").