4. The Return of the Living Dead (1985)
Although Romero purists will marginalize John Russo's post-Night-of-the-Living-Dead impact on the zombie movie genre, "The Return of the Living Dead" had an indelible impact in two ways. First, it featured fast-moving zombies decades before they became mainstream in modern day zombie movies. Second, it introduced the zombie call-to-arms, "Braaaains!"