I liked most of I Am Legend, based on the story by Richard Matheson, though my admiration stopped at the computer-generated effects, which tended toward the cartoony. What makes matters even worse was that StudioADI was actually working on practical special effects on the movie for a time (which actually effected the way that I looked at the director, Francis Lawrence for awhile, and not in a good way).
Included in the video are concept drawings, clay maquettes as well as actually makeup tests on models (it got that far before the approach was abandoned).
The makeup work looks pretty awesome and would have made a decent movie significantly better, which is why I am mystified they didn’t go with it.
