Grebey is a contributor for TIME. Clockwise from Top Left: 28 Days Later, Night of the Living Dead, Evil Dead II, Resident Evil, Shaun of the Dead, Dawn of the Dead Clockwise from Top Left: 28 Days ...

As we get closer to seeing 28 Years Later on a big screen, I find myself with zombies on the brain. We have many classics, like Night of the Living Dead, Sugar Hill (1974), and Night of the Comet.