‘28 Years Later’ Review: Danny Boyle’s Zombie Opus Is a Corpse to Be Reckoned With

It’s hard to overstate just how small the zombie genre was 23 years ago when Danny Boyle’s “28 Days Later” rejuvenated and supercharged the walking dead. George A. Romero’s films were largely sacrosanct, at least to horror fans, and there were always excellent imitators and playful homage. But the idea of a blockbuster mainstream TV series about the zombie apocalypse would have been laughable; the idea that zombies weren’t slow, shambling meat sacks was unthinkable. “28 Days Later,” with its low-fidelity...