“Where do zombies come from?” my little niece asked the other day. As The Cool Aunt, I thought I could handle this. “Well, small child,” I said, “when two zombies love each other very much, and want to… ah.” Sweat poured down my brow. I started over, “The thing about flesh is… no, no. Okay, so, you may have noticed that people…” If only Dying Light‘s cinematic intro had arrived in trailer form a little sooner, I might be welcome at this year’s family Christmas dinner.