The first episode of Walking Dead hasn't even aired yet, and AMC has already green-lit a second season. It's hard to blame them after watching the ass-kicking trailer below, which takes its time in slowly revealing the show's zombie-infested world. That kind of pacing is reassuring, since Walking Dead will have to find ways to engage viewers long-term through a horror sub-genre that's usually compacted into 90 minutes of plot-free gore. In this case, the pilot alone will be 90 minutes, making its debut on Oct. 31, with five more episodes to follow in the all-too-brief first season. If that leaves you hungry for more, good news: You've got about seven years' worth of monthly Walking Dead comics to catch up on.
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