I Am Legend
I Am Legend is a 2007 American post-apocalyptic action horror film directed by Francis Lawrence from a screenplay by Akiva Goldsman and Mark Protosevich and starring Will Smith as U.S. Army virologist Robert Neville. Loosely based on the 1954 novel of the same name by Richard Matheson, the film is set in New York City after a virus, which was originally created to cure cancer, has wiped out most of mankind, leaving Neville as the last human in New York City, other than nocturnal mutants. Immune to the virus, Neville works to develop a cure while defending himself against the hostile mutants. It is the third feature-film adaptation of Matheson's novel following 1964's The Last Man on Earth and 1971's The Omega Man.
Plot
In 2009, a genetically engineered measles virus designed to cure cancer mutated into a lethal airborne strain called the Krippin Virus, triggering a global pandemic. The virus killed 90% of the human population, and transformed the other 9% into vampiric-zombie, albino mutants known as Darkseekers, who roam at night to hunt for immune humans as they are vulnerable to sunlight.