The Last Man on Earth (Italian: L'ultimo uomo della Terra) is a 1964 post-apocalyptic science fiction horror film based on the 1954 novel I Am Legend by Richard Matheson. The film was produced by Robert L. Lippert and directed by Sidney Salkow and Ubaldo Ragona, and stars Vincent Price and Franca Bettoia. The screenplay was written in part by Matheson, but he was dissatisfied with the result and chose to be credited under the alias "Logan Swanson". William Leicester, Furio M. Monetti, and Ubaldo Ragona finished the script. The film was a co-production between the United States and Italy, and was filmed on location in Rome. It was released in the United States by American International Pictures. In the 1980s, the film entered the public domain. The Last Man on Earth is the first of three adaptations of Matheson's novel, followed by The Omega Man (1971) and I Am Legend (2007).