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The following FAQ entries may contain spoilers. Only the biggest ones (if any) will be covered with spoiler tags. Spoiler tags have been used sparingly in order to make the page more readable.
Vampires. But the behavior of these creatures--that lumber around half-mindlessly and feed off the living--are acknowledged to be the inspiration for the flesh-eating zombies that George A. Romero and his crew created later for Night of the Living Dead (1968).
Yes. The Last Man on Earth is based on the 1954 novel, I am Legend, by American author Richard Matheson. The novel was adapted for this film by screenwriters Furio M. Monetti, Ubaldo Ragona (who also co-directed the movie), William Leicester, and Richard Matheson (as Logan Swanson). Three more adaptations of the novel have followed: (1) The Omega Man in 1971 starring Charlton Heston, (2) I Am Legend (2007) featuring Will Smith, and (3) the straight to DVD I Am Omega, also released in 2007.
He would have had to share space with rats, roaches and every other kind of crawling vermin. And the stink of rotting food would have added to the unpleasantness. The large panes of glass would have been impossible to protect and would have allowed the vampires to see everything Morgan was doing. And a supermarket has too many places for the undead to hide and wait.
Countless distributors specializing in public domain movies have released The Last Man on Earth (1964) onto VHS and DVD. Beware. Some small distributors market copies of both public domain and copyrighted films with poor picture and sound. Others are more reputable and deliver good transfers of the best available prints. Shop around. You can begin your search here at Amazon.com.
The Last Man on Earth (1964) can be watched on archive.org or Classic Cinema Online.
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