I AM LEGEND Almost Had Arnold Schwarzenegger and Ridley Scott On Board
Back when I Am Legend came out, I thought it was a pretty good movie. My friend, however, did not. He was one of the guys that had actually read I Am Legend prior to the film's release and was disappointed in the lack of follow through with the original story.
Rejected Film Ideas leads me to believe my friend would've been a bit more satisfied with Ridley Scott's retelling, although after reading the book, I feel like it'd be very difficult to fully adapt without giving too much away. Hear a little bit of the original plan, and how it fell apart below.