There’s no denying the impact 28 Days Later had on the horror genre. Although not technically the undead, the “infected” in the movie revitalized what was quickly becoming a tired zombie gimmick in film, breathing new life into the monsters whilst also holding a mirror up to society in a bleak and powerful way akin toDawn of the Dead. Danny Boyle‘s frenzied horror, led by Cillian Murphy’s breakout performance, is considered by many to be one of the genre’s best.