When Zombieland: Double Tap hits theaters on Friday, October 18, it'll be almost exactly 10 years since the original horror comedy made its debut. That's a long time between sequels. And while you may think you remember the original Zombieland pretty well, there's more to the movie than wisecracks, gore and Twinkies. From the surprisingly violent zombie carnage to a celebrity cameo to that other celebrity cameo, here are six things you may have forgotten about Zombieland. Watch our review of Zombieland: Double Tap below: There's an Amber Heard Cameo Zombieland has a surprisingly small cast for a zombie movie.