Will Smith carries the movie

Rating: 8/10 (23 December 2007)

In 2009, Dr. Krippen finds a cure for cancer by mutating a measles virus. Unfortunately, the virus, mutated to attack only cancerous cells, gains a life of its own. It spreads rapidly around the globe, and within three years, 90% of human life is wiped out.
Will Smith plays Robert Neville, a military scientist who is one of 12 million people who were naturally immune to KV. Dr. Neville is the sole survivor in the City of New York. So far as he knows, he and his dog Sam are all that is left of civilization. But he is not alone. The rest of the survivors became zombies, feeding off the healthy survivors.
To ease his loneliness, he sets up a few mannequins across the city so that he has someone to greet as he makes his daily rounds (like Tom Hanks and Wilson in "Cast Away"). He also turned his basement into a lab in which he experiments with rats, trying to find a cure for the virus.
One of the unique aspects of "I Am Legend," compared to other post-apocalypse movies, is the zombies had personalities. The Alpha Male is not only strong and tough, he is also very smart, able to set a trap for Neville and rally hundreds of zombies to fight with him. He was also smart enough to search all parts of Neville's townhouse.
The movie is not without its flaws, but it is much better than the Omega Man. There are some really good scares, and Will Smith was terrific in the lead.