On May 14 , 2013 , Random House Audio released a lengthier audiobook titled World War Z : The Complete Edition ( Movie Tie @-@ in Edition ) : An Oral History of the Zombie War . It contain the entirety of the original , abridged audiobook , as well as new recordings of each missing segment . A separate , additional audiobook containing only the new recordings not found in the original audiobook was released simultaneously as World War Z : The Lost Files : A Companion to the Abridged Edition .