David Goyer, writer/director of superhero films and comics, wrote a script for the Ghost Rider film back when Stephen Norrington was attached to direct.
Now, that script, an R-rated tale, can be read online. "Mark Steven Johnson (current director & writer) may have borrowed select scenes to create his own version, which was used in the recent filming of the August 6, 2006 Ghost Rider movie," says Internapse.