Original script?

I read that in the first version of the script Riddick was going to be a woman named Tara Krieg (fyi 'krieg' mean 'war' in German). Back then the movie was going to be called 'Nightfall'.

Does anyone know if that script can be found somewhere online? I would like to take a look at it.

Rule #1: If the unreleased movie is based on a book, read the book before posting.