I Am Legend is a post-apocalyptic action thriller film directed by Francis Lawrence. Will Smith plays the role of Dr. Robert Neville, a scientist who is the last survivor in New York City after a virus wipes out most of humanity and turns the remaining population into mutants. The film explores themes of isolation, survival, and the ethical dilemmas faced by Neville. I Am Legend was a box office success and showcased Smith's ability to carry a film as the sole lead.