Martin (1977)
Martin earns its 8 by asking a question that quietly dismantles the entire vampire genre. What if there is no such thing as a vampire, only a disturbed young man who believes he is one?
George A Romero wrote Night of the Living Dead and Dawn of the Dead and Creepshow, and his zombie films use the premise almost entirely as a frame for social argument, moving from race to consumption to class across the series.