Zack Snyder's Army of the Dead, a movie about hordes of zombies taking over a major US city, guarantees a certain amount of CGI. Creating character baddies like the zombie king and queen alongside conjuring mass swathes of the undead ghouls requires some CG heavy lifting. But, as revealed in the latest Netflix Film Club video, the city of Las Vegas underwent similar treatment. Those who've seen the movie will know that the majority of its considerable runtime takes place within the walls of a ruinous Las Vegas. The opening credits chronicles the city's fall under zombie rule. Naturally, it involves government presence and many, many explosions. It should come as no surprise that this involved a mash of effect strategies, with the main team shooting on the ground while a second crew filmed Vegas from a helicopter, fed it into a computer and grafted a 3D version onto the footage.