Who's seen the alternate ending?

I just watched this movie on netflix; I had a pretty good idea of what was going on from the beginning so nothing was a big shock except how much I liked it. Evan Rachel Wood is a wonderful actress and I very much enjoyed Eva Amurri as well.

So now I hear there is an alternate ending and it is driving me INSANE. Has anyone seen it, and if so, please spoil so that we may discuss! Thanks. :)