There are three stories and only three stories.
I kid. But actually, if you look at most of the blockbuster movies, especially those from Disney, these lines will feel fairly familiar to you. This is Vonnegut's take, and I highly encourage you to follow the link and watch the four minute video of him explaining these three lines. It's excellent delivery and very funny.
Personally, I like the Hero's Journey, as outlined by Joseph Campbell, but you can see that there are a lot of similarities: http://en.wikipedia.org/wiki/Monomyth #story #myth