The opening sequence of I Am Legend establishes the time, place, and mood through various techniques. It begins by showing the film's production companies and then cuts to a news interview from three years earlier that provides exposition on a cancer cure that has caused an apocalyptic event, leaving cities deserted. The sequence makes use of establishing shots, close-ups during the interview, a blackout for suspense, and a voiceover with ominous music to set a chilling tone and foreshadow the film's events.