Last Man on Earth - Vincent Price

1964 American International Pictures based on the 1954 novel I Am Legend by Richard Matheson. It stars Vincent Price and Franca Bettoia in the girl part. The screenplay was written partly by Matheson, but he was embarrassed by what he'd done and chose to be credited as "Logan Swanson".

The Earth has been infected by a weird plague that turns people into blood-craving vampires who walk real slow and are dumber than rocks. Vincent Price is Dr. Robert Morgan whose home looks like a cheap trailor. He’s taken it upon himself to kill as many of them as he can, probably because there’s nothing else to do, and he dumps the bodies in a giant pit. Part-way through the film he meets an actual live person, who just happens to be a sexy Italian vixen who is part of a group of live people. To say this film is ultra low-budget would be to make it sound more expensive a production than it is.