I have found this today in the internet. This is the Original Screenplay from Terry Gilliam and Charles Mc Keown) from 26th of May, 2007 .... maybe.
I have read in an interview that Mr. Gilliam changed this original screenplay a lot during creating the storybook (storyboard) so maybe the story has not much in common with the movie....
I haven´t read the screenplay until now, but I want to share it with you, immediately. http://www.scribd.com/doc/11754028/The-Ima...ance-Screenplay
PS: To download the script you have to login. If you have problems to open, download, etc. please let me know. I will send you an E-Mail. (email@example.com)
And under this Link you will find some really amazing pictures from the storyboard. Mr. Gilliam is really a great artist. http://www.wired.com/underwire/2009/12/fan...inariums-world/
Hope you like it.