I Am Legend is a 2007 American post-apocalyptic action thriller film directed by Francis Lawrence from a screenplay by Akiva Goldsman and Mark Protosevich and starring Will Smith as US 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, other than nocturnal mutants. Neville is immune to the virus, and he 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.

Francis Lawrence is an American filmmaker and producer. After establishing himself as a director of music videos and commercials, Lawrence made his feature-length directorial debut with the superhero thriller Constantine (2005) and has since directed the post-apocalyptic horror film I Am Legend (2007), the romantic drama Water for Elephants (2011), four of the five films in The Hunger Games film series, and the spy thriller Red Sparrow (2018).